Re: [Emc-users] almost for how helpful
I think you can still get IBM keyboards (made with the same pattens) http://pckeyboards.stores.yahoo.net//index.html :) ah the good old days. sam Mark Wendt (Contractor) wrote: I remember those. We had them by the thousands here at the Lab, back when the Big Iron was king. Orange was a little easier on the eyes than that ugly shade of green. Perhaps that's why it was so effective as the splash screen for the Matrix movies - the green that is. I haven't touched an Apple keyboard in years. If I recall, their old keyboards were pretty decent. Where does one find decent keyboards today? I haven't seen one in a long, long time. Mark At 10:15 AM 5/18/2009, you wrote: Orange 8). And a big yes regarding the tactile feedback. The worst are Apple Keyboards. They are like touching a pork chop in a plastic bag. I loved to 'hack' the living heck out of the older keyboards. Today I fear my fingers would jam right through 8). On the other hand... there are still good key boards. But do I pay that price? Na I rather poke a dead pork chop than pay $100 haha. Rainer On Mon, May 18, 2009 at 6:05 AM, Mark Wendt (Contractor) mark.we...@nrl.navy.mil wrote: Speaking of VT100's and such, you know what I really miss? The feel of the older keyboards that DEC and IBM used to sell. There was just a more robust feel to the keystroke, like you were actually typing on a real keyboard. There just doesn't seem to be the tactile feel in these modern keyboards. So, was it monochromatic green or orange? ;-) Mark -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa-Hm2
I was in the reading room with a popular science... ;) also they say the milk might taste more burnt.. (I never noticed that) love you sam Sebastian Kuzminsky wrote: Terry wrote: If I change this line: CONFIG=firmware=hm2/5i20/SVST8_4.BIT num_encoders=3 num_pwmgens=4 num_stepgens=1 to this: CONFIG=firmware=hm2/5i20/SVST8_4.BIT num_encoders=4 num_pwmgens=4 num_stepgens=0 I can have the step gen pins as gpio pins? Also I can have the pins that are listed as the encoders (and pwms) on channels that are numbered larger than the four that I am using? (4,5,6,ect) I hope this is right as it sounds good to me. Yes, that's it exactly. :-) -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa-Hm2
heh - sorry about that.. I know love is a strong word... ;) (replied to the wrong email) sam sokolik wrote: I was in the reading room with a popular science... ;) also they say the milk might taste more burnt.. (I never noticed that) love you sam Sebastian Kuzminsky wrote: Terry wrote: If I change this line: CONFIG=firmware=hm2/5i20/SVST8_4.BIT num_encoders=3 num_pwmgens=4 num_stepgens=1 to this: CONFIG=firmware=hm2/5i20/SVST8_4.BIT num_encoders=4 num_pwmgens=4 num_stepgens=0 I can have the step gen pins as gpio pins? Also I can have the pins that are listed as the encoders (and pwms) on channels that are numbered larger than the four that I am using? (4,5,6,ect) I hope this is right as it sounds good to me. Yes, that's it exactly. :-) -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Inspiration please......
The cnczone link tom posted is what I have been working on. The current schem/pictures are here http://www.electronicsam.com/images/KandT/servostart/schem/latestcurrentlimit/ use at your own risk :) It might be overkill for your application but might give you some ideas. The input is PWM/PWM (sending pwm in one input is cw - sending pwm in the other input is ccw) (plus an enable). I have run this directly from the printer port but am using the pluto for faster encoder counting when using it to run closed loop (servo). It has been lightly tested up to 22a 180v. (the limit right now is the boot strap diodes are only rated for 200v). For my app that should be fine as 150-160v is where my servos max out. This thing has evolved slowly over the last few years. Started out as a simple opto-isolated h-bridge. Added current limit and enable. (this when thru a few iterations as I had some issues with current paths and current sensing) finally after fighting current sensing issues (mainly trying to filter out the mosfet turn on spike) I added a blanking circuit. (makes it so the current sense circuit doesn't read anything for aprox first 5us the mosfets turn on). The way it is setup - the circuit is really designed for 20khz or lower pwm. couple videos of the previous versions.. ;) http://www.youtube.com/watch?v=qY-FCN5ZXkgfeature=channel_page http://www.youtube.com/watch?v=i3zB1ZJv8cMfeature=channel_page picture of latest version (one I brought to Wichita.) http://www.electronicsam.com/images/KandT/servostart/schem/latestcurrentlimit/right.JPG people had fun turning the servo shaft and running it into current limit. (it was set to 5a at the time) sam Tom wrote: Ian Wright watchm...@... writes: Hi, I'm looking for inspiration as to how I can use a 12 volt 6-8 Amp motor to drive my mini-mill spindle. I'm currently using an old mains voltage teleprinter motor which, although it does the job admirably, is as noisy as hell and I have to leave the room while it screeches away. I've now got this nice little 12 pole 12 volt motor which should do the job better and quieter but, while I am fitting it, I would like to get some automatic control over its speed. So, does anyone know of any schematics/circuits which I could build to allow me to hook the motor up to EMC2 and send it meaningful M3 / M4's? Ian Ian W. Wright Sheffield UK Hello Ian, Since you mention schematics/circuits I am assuming that you intend to build your own H bridge controller for the 12V spindle motor that you have. True? If so, you will need to decide on what control signal (0-10-vdc + dir, pwm + dir) you will use. If, for example, you decide to use 0-10vdc + dir then you will need to decide how to output it (CNC4PC, Mesa 5i20, motenc, etc.) and how to properly isolate it so that switching noise from the spindle amplifier/H-bridge motor commutator does not interfere with the logic side of your controls. Once you have an isolated spindle control signal, then you can adapt any number of H bridge controllers to use that signal. The Unitrode UC1637 is an H bridge controller that can be configured to use a 0-10v control signal, and could be used to control a homebrew H bridge consisting of P channel high side / N channel low side mosfets. See the datasheet here: http://www.iutenligne.net/ressources/etudes_realisations/Lequeu/kart/pdf/SLUA13 7.pdf Here is a link to an open source dc servo design discussion that might help. http://www.cnczone.com/forums/showthread.php?t=25929 Good luck, Tom -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.46/2145 - Release Date: 05/31/09 05:53:00 -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users
Re: [Emc-users] Inspiration please......
I switched to igbt's because I got a good deal on them and they are 51A at 900v. (yes they seem to be running a bunch cooler than the mosfets I was trying. - like it is hard for me to tell if they are getting warm at 20a.) The inital mosfets I was using had a Rds that was way to high. You just couldn't get the heat away from them at anything above 10-15A. JohnK schooled me quite a few times on what the specs really mean :). Thanks again John! I am very happy with the current design. (at least I have not destroyed it yet) The big servos we are going to use are pretty much 1:1 as far as amp vs current. So 5 amps is about 5 ft-lbs. sam Tom wrote: sam sokolik sa...@... writes: The cnczone link tom posted is what I have been working on. The current schem/pictures are here http://www.electronicsam.com/images/KandT/servostart/schem/latestcurrentlimit/ use at your own risk :) snip... Good to hear from you Sam! Thanks for the recent links. I wish I had been able to make to the Fest, I would have looked forward to meeting you and comparing notes... Nice work on the blanking circuit. Did you switch to power IGBTs? Are they running cooler? Amazing how much holding power you can get with 5 amps on those big servos. Tom -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.46/2145 - Release Date: 05/31/09 05:53:00 -- Register Now for Creativity and Technology (CaT), June 3rd, NYC. CaT is a gathering of tech-side developers brand creativity professionals. Meet the minds behind Google Creative Lab, Visual Complexity, Processing, iPhoneDevCamp as they present alongside digital heavyweights like Barbarian Group, R/GA, Big Spaceship. http://p.sf.net/sfu/creativitycat-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Show Hidden Files and Directories????
from here http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2009-04-28.txt I think kirk first noticed it I also think it is fixed in the development version. The gist of it is - don't click on the check box - click on the words. 2009-04-28 20:42:09 skunkworks 8.04 latest livecd 2009-04-28 20:42:25 skunkworks aj12 2009-04-28 20:43:16 jepler and the lockup happens after you click show hidden files and directories 2009-04-28 20:43:17 jepler ? 2009-04-28 20:43:21 skunkworks yes 2009-04-28 20:43:24 jepler before you do anything else, or the screen contents refresh? 2009-04-28 20:43:34 archivist ok now fired up emc and axis stops the show 2009-04-28 20:43:35 skunkworks the check doesn't actually check either 2009-04-28 20:44:22 archivist and the contents dont change in the window 2009-04-28 20:44:33 skunkworks you can go right into axis - file open - then try to check the checkbox. 2009-04-28 20:44:35 jepler aha! finally it did it for me too 2009-04-28 20:44:41 crice I just went to my home folder using axis open and clicked on show hidden. 2009-04-28 20:44:47 jepler you guys all click the box. I was clicking the words next to it 2009-04-28 20:45:02 skunkworks heh - odd 2009-04-28 20:45:07 toastatwork toastatwork has quit 2009-04-28 20:45:22 skunkworks clicking on the words works? 2009-04-28 20:45:26 archivist odd bug of the year 2009-04-28 20:45:33 jepler skunkworks: it does for me 2009-04-28 20:45:53 jepler well now I know how I'll be spending my evening 2009-04-28 20:46:09 jepler thanks all for crashing your computers for me 2009-04-28 20:46:13 skunkworks does here also a...@conceptmachinery.com wrote: hi can i remove everything that with ~ mark? what happen if i got 1000 files and i have problem find what i need? my editor same as on all EMC2. i did not add anything. thanks aram Depending on the editor, they make a 'backup' of a file with a tilde ( ~ ) appended to the file name. You don't have to delete them, unless you are running low on space or you are a little OCD :) IHS ... Jack On Tue, Jun 30, 2009 at 12:02 AM, a...@conceptmachinery.com wrote: Hi when i try to click on Show Hidden Files and Directories to check box my computer freezes and i need cut power to restart. why it happened? Also what is the reason for Linux show files with this ~ that not exist? i delete file and it still show with mark ~ . Can i remove that files? after while i may have 1000 file deleted, so they all will there with ~ mark?? thanks aram -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] atom processor
I have played with this board http://www.newegg.com/Product/Product.aspx?Item=N82E16813121359 nothing stellar but works (latency's stay just under 20us) Using the stock emc2 livecd. YMMV sam Douglas Pollard wrote: Hi all, Have just lost my shop cnc computer motherboard gone as best I can tell. Have been looking on line a new computers and there are a couple cheap ones with an atom processor 1.6 ghtz a couple gigs of ram am wondering if anyone has used this processor with Emc. Anybody got any ideas on this. Thanks, Doug -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Realistic spindle encoder count for parallel port?
I don't know how many have seen this but it really shows how flexable emc2 is. This is rigid tapping through the printer port. (and it is just cool) He is using a 360ppr encoder. http://www.youtube.com/watch?v=C740zS9R9kk You can read about it here. http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Pjm sam Jon Elson wrote: Steve Blackmore wrote: On Tue, 15 Sep 2009 20:24:16 -0500, you wrote: On Tue, 2009-09-15 at 11:06 -0400, Dave wrote: IMO you'd want it to be no more than a pulse wide or the threading may start at any of the pulses that the index spans. Strange behaviour? - It should start on either the rising or falling edge, if it starts anywhere else it needs fixing. This whole thread is about using the SOFTWARE enocder counter (a HAL component) for the spindle position. It is software sampling of the encoder signals, so the rising edge would be detected at the first sample where index was noticed to be true. But, of course, if the sample rate was slower than the quadrature count rate, the encoder counter would not be able to reliably count position anyway! So, stretching the index pulse wider than one encoder count would not actually help anything, unless you were wanting to just sense the index pulse and ignore the quadrature count. All in all, I think the whole exercise is a big mistake. If you want to use the software encoder counter, you need a low resolution encoder, maybe as low as 25 cycles/rev, or 100 quadrature counts/rev. At 1000 RPM or 16.67 RPS, that would give 1667 counts/second, plenty safe for software counting. I would think this would still give perfectly smooth following of the axis. If you insist on a higher resolution encoder, then you should be using a hardware encoder counter. Any possibility of accidentally running the spindle at a speed where the software counter loses track will eventually occur and bite you! Jon -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoders
Check to see what output you are using from the encoder hal componant.. *encoder.*/N/*.position-interpolated does what you need. '*Position in scaled units, interpolated between encoder counts. Only valid when velocity is approximately constant, do not use for position control' http://linuxcnc.org/docs/2.3/html/man/man9/encoder.9.html * sam * Steve Blackmore wrote: On Wed, 30 Sep 2009 10:50:58 +0100, you wrote: I am intending to make a better encoder. I think my problem is an unfortunate combination of things one of which is too-infrequent position updates, I think one of the problems I have is that there seems to be no averaging on my spindle encoder values. I've done a test today that highlights that problem. I ran a 1.5mm pitch thread at 200 rpm, with a 125 ppr encoder and recorded the sound. The Z stepper is machine gunning, stop/start/stop/start etc and not running smoothly. The spindle speed isn't changing ( both my o'scope and a frequency counter confirm that) but my system seems to think it is and incorrectly adjusts the Z axis accordingly! I've no idea how, or if it's possible to average the encoder readout? Steve Blackmore -- -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoders
sorry - I meant replace the line with net spindle-position *encoder.*/0/*.position-interpolated* = motion.spindle-revs sam Steve Blackmore wrote: On Wed, 30 Sep 2009 15:57:12 +0100, you wrote: On Wed, 30 Sep 2009 14:26:24 +0100, you wrote: 2009/9/30 Steve Blackmore st...@pilotltd.net: I've no idea how, or if it's possible to average the encoder readout? Yes, you need to make a small change to your HAL file, see: http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,24/id,369/limit,6/limitstart,42/lang,en/#891 position-interpolated - that's even worse :( For interest, these are the only lines in my hal file that refer to encoder, can anybody see anything wrong or missing? loadrt encoder num_chan=1 setp encoder.0.position-scale 500.00 net spindle-position encoder.0.position = motion.spindle-revs net spindle-velocity encoder.0.velocity = motion.spindle-speed-in net spindle-index-enable encoder.0.index-enable = motion.spindle-index-enable net spindle-phase-a encoder.0.phase-A net spindle-phase-b encoder.0.phase-B net spindle-index encoder.0.phase-Z Steve Blackmore -- -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoders
Try changning net spindle-position encoder.0.position = motion.spindle-revs to *net encoder.0**.position-interpolated *= motion.spindle-revs (if I did that right) and see if the low rpm jitter is gone. sam Steve Blackmore wrote: On Wed, 30 Sep 2009 15:57:12 +0100, you wrote: On Wed, 30 Sep 2009 14:26:24 +0100, you wrote: 2009/9/30 Steve Blackmore st...@pilotltd.net: I've no idea how, or if it's possible to average the encoder readout? Yes, you need to make a small change to your HAL file, see: http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,24/id,369/limit,6/limitstart,42/lang,en/#891 position-interpolated - that's even worse :( For interest, these are the only lines in my hal file that refer to encoder, can anybody see anything wrong or missing? loadrt encoder num_chan=1 setp encoder.0.position-scale 500.00 net spindle-position encoder.0.position = motion.spindle-revs net spindle-velocity encoder.0.velocity = motion.spindle-speed-in net spindle-index-enable encoder.0.index-enable = motion.spindle-index-enable net spindle-phase-a encoder.0.phase-A net spindle-phase-b encoder.0.phase-B net spindle-index encoder.0.phase-Z Steve Blackmore -- -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoders
lets try that one more time. (again - sorry) I have to stop copy and pasting net spindle-position encoder.0.position-interpolated = motion.spindle-revs Steve Blackmore wrote: On Wed, 30 Sep 2009 15:57:12 +0100, you wrote: On Wed, 30 Sep 2009 14:26:24 +0100, you wrote: 2009/9/30 Steve Blackmore st...@pilotltd.net: I've no idea how, or if it's possible to average the encoder readout? Yes, you need to make a small change to your HAL file, see: http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,24/id,369/limit,6/limitstart,42/lang,en/#891 position-interpolated - that's even worse :( For interest, these are the only lines in my hal file that refer to encoder, can anybody see anything wrong or missing? loadrt encoder num_chan=1 setp encoder.0.position-scale 500.00 net spindle-position encoder.0.position = motion.spindle-revs net spindle-velocity encoder.0.velocity = motion.spindle-speed-in net spindle-index-enable encoder.0.index-enable = motion.spindle-index-enable net spindle-phase-a encoder.0.phase-A net spindle-phase-b encoder.0.phase-B net spindle-index encoder.0.phase-Z Steve Blackmore -- -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Encoders
when you get a chance - try the interpolated output from the encoder. sam Steve Blackmore wrote: On Fri, 02 Oct 2009 15:24:24 -0400, you wrote: Page 5 and 6 show it but not at a good time scale, page 7 from the base thread sample shows it very clearly Steve. Noise. Until that is gone (and encoder A output could have a closer to 50% duty cycle too, I'd almost return that one in fact if its sealed and non adjustable), it isn't going to work, not even if we make sacrifices. :) I have to assume the encoders cabling is shielded, and the shield ends at the encoder so there is no connection via the shield to the machine by way of how the encoder is mounted and driven. That would be what we call a ground loop, and that is usually a no-no. Thanks Gene, that gave me clue and I found it - The encoder cable had a strand from the shield touching the plug at the controller end. Much, much better now, but still has the odd glitch, from where I don't know. disconnecting all the grounds didn't get rid of it. As for the 50% duty cycle, can't do anything about that other than replace the encoder. But - running at slow speed it's MUCH better, and running my test 1.5mm pitch test file at my normal 700 rpm it's not noticeable at all. Have a look at the difference :) http://filebin.ca/brcenc/encoder.pdf Steve Blackmore -- -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G68 coordinate system rotations (apparently it's been implemented?!?!)
I do not know where you get the g68 code but coordinate rotation is implemented in the development version of emc2. -This is done using g10. Direction for getting it here http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_6_06_or_8_04_from_source definition here http://www.linuxcnc.org/docs/devel/html/gcode_main.html#sub:G10:-Set-Coordinate http://www.linuxcnc.org/docs/devel/html/gcode_main.html#sec:G10-L20 I have played with it - Works great :) http://www.electronicsam.com/images/KandT/testing/rotate1.png http://www.electronicsam.com/images/KandT/testing/rotate.png sam Colin MacKenzie wrote: According to this recent page... http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?action=browsediff=3id=EmcFeatures ...G68 has been implemented. However, I have 2.3.3 installed and it says unknown gcode. I've been looking forward to this gcode for a long time. I would use it to easily correct any misalignments of the workpiece. For example, in drilling pcb's I would touch off at one drill point (or any reference point), go to an opposite drill point and compute the necessary rotation in the XY plane. I would automate this process in my drill file gcode generator. Sure, there are ways of realigning the workpiece, but I often end up a few mils or so off and it takes longer. Anyone know the true status of this feature? I heard a year ago it would be tough to implement because of the nature of emc's framework. (??) C -- Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Has anyone ever done a Kitamura?MyCenter/EMC?conversion?
Hey! Did you end up using your home made pwm drives? (samco on cnczone) sam kestreltom wrote: Jon Elson el...@... wriotes: Darn, there are no skylights in my basement! I've wondered if a slightly taller machine could be positioned just under the right spot under a kitchen cabinet, but I don't really want to poke too many more holes in the main level floor sheets. Jon Hey Jon, Skylights I have in the house, but the mill is in the barn where I just slide the door back and voila - fresh air and backlighting. Notice the background in the video here: http://www.youtube.com/watch?v=ognNuQzcXRw During the summer months this can be beguiling, but come winter I dream of insulation and sheetrock. Tom -- Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.42/2473 - Release Date: 10/31/09 21:14:00 -- Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle drive
look at pwmgen. http://linuxcnc.org/docs/2.3/html/man/man9/pwmgen.9.html it has a pwm up/down mode. I have goofed around with it a bit.. http://www.youtube.com/watch?v=eUmFKOVepYY sam Ian W. Wright wrote: Thanks Dave and Kirk for your suggestions, they are food for thought. The little motor I have will be powerful enough for the time being and runs at 10,000rpm - almost all the milling I do is with cutters of 3/16 and under - mostly 1mm or less. I won't be using the motor as the spindle - I have a nice ball-raced spindle that I made with preloaded races, and so I will be belt driving it at almost 1:1 ratio. I did think I had seen a reference to just hooking the parallel port to a FET but I couldn't locate the reference again and I am a bit hesitant about getting high power so close to the parallel port. I will probably try an H-bridge of FETs or power transistors with some buffering between that and the parallel port. Has anyone figured out how to output forward and reverse PWM signals yet or a PWM signal with two other pins giving a forward and reverse signal? I noticed one post mentioning PDM - what's that? Thanks, Ian -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.425 / Virus Database: 270.14.65/2502 - Release Date: 11/14/09 07:43:00 -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] remove unwanted copper between tracks and pads
I have had very good luck with gcode.ulp. The gcode will require some editing (or changing of the script) if you don't have a tool length sensor. It has a roughing mill and fine mill. You can also tell it how many passes for each tool. I set the first tool length manually - then it touches the tool length sensor - then after each subsequence tool change - the tool length is automatically set with the tool length sensor. http://git.unpy.net/view/eagle.git a few trys... :) http://www.electronicsam.com/images/KandT/servostart/amp.JPG http://www.electronicsam.com/images/KandT/servostart/top.JPG http://www.electronicsam.com/images/KandT/servostart/schem/newcurrentlimit/bottom.JPG http://www.electronicsam.com/images/KandT/servostart/schem/newcurrentlimit/top.JPG sam Andy Pugh wrote: 2009/12/2 Jon Elson el...@pico-systems.com: http://www.pcbgcode.org/ This requires you to use Eagle as the PCB package, I'm guessing that it doesn't accept input from any other packages. It also cuts round the traces for the circuit which seems to not meet the requirements of the original query. -- Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i20 5i23
The 50 pin cables are garden variety scsi cables. Doesn't everyone have a stash of these? ;) I would think any computer repair store would all but give you some if you asked. sam On 1/6/2010 03:15 PM, John Thornton wrote: The 5i23 will not gain you anything for use with EMC. As stated they do not come with cables. The cables are 50 pin not the more common ones used in computers that have like 42 pins or something like that. There are several daughter boards including a breakout board. There are pictures on the Mesa web site http://www.mesanet.com/ just go to Anything I/O FPGA Cards. John On 6 Jan 2010 at 10:03, Flying Electron wrote: I'm leaning towards getting a mesa 5i20 or 5i23, but had a few questions that someone might be able to answer. Does anyone have a picture of what the mesa 5i20 or 5i23 looks like when it is installed? Did it come with cables for the IO? Is there a breakout board for it? Thanks! -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mesa 5i20 5i23
It is kinda an inside joke. It started being just a simple h-bridge using the irf high side drivers. Then I thought I would add cycle by cycle current limit. figured out after a few failures that I needed some sort of blanking circuit. Some where along the way an enable was added. (still only lightly tested) So - the 'simple' h-bridge isn't so simple any more. :) sam Stuart Stevenson wrote: simple is the emphasis here? On Wed, Jan 6, 2010 at 4:36 PM, Stephen Wille Padnos spad...@sover.netwrote: Stuart Stevenson wrote: just expressing my ignorance - what will 3 phase PWMs do? I suspect the idea is to drive 3-phase servos/motors with 3-phase simple H-bridges similar to the (2-phase)ones Skunkworks has made. - Steve -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.432 / Virus Database: 270.14.127/2603 - Release Date: 01/06/10 07:35:00 -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo Drives
http://www.electronicsam.com/images/KandT/pcbmill/bldcenc2.jpg The keling servos I got (also the KL23BLS-115) have 2 very shallow tapped holes that line up to the mounting holes of the encoder. I found some laptop assembly screws that just happened to be the right length. Mariss seems to love these encoders over the cheap us-digital ones for his step/dir servo drives YMMV sam On 1/7/2010 03:36 PM, Flying Electron wrote: Wow! Thank you so much for the link. The amps on ebay looks pretty much exactly what I am looking for. I looked at the datasheet for the issue with the drive inputs being commoned at +5V like you pointed out, but I'm pretty sure I can hack up something to deal with that, like run the signals through a microcontroller to do whatever translation is necessary. I especially like that they are all mounted in a nice box for me already :-) Getting closer. Mesa card + Servo Amps are picked out. Keling motors look good. Do you know if that amt102-v encoder need anything special to mount on the back of a NEMA 23 brushless motor like an adapter plate or anything like that? Or do encoders and motors have standard mounting patterns so that all encoders fit all motors nicely? Yesterday I had no idea what I needed to buy or even what questions to ask, and today everything looks doable. sam sokolik wrote: there are always deals if you are patient. Like... *KL23BLS-115*KL23BLS_115.pdf*: $52/pcs brushless servos digikey amt102-v encoder 29.95.-up to 2048 line - adjustable. ebay 3 amc amplifiers that take pwm+dir http://cgi.ebay.com/3-AXIS-A-M-C-PWM-Brushless-SERVO-AMPLIFIER-ASSEMBLY-NEW_W0QQitemZ260516353589QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ca7fc1635 179.95 Not including shipping for 3 axis... (not including mesa hardware) $425.80 closed loop - priceless... ;) You would want to do your homework though - like the drive inputs seem to be common-ed to +5v. (probably not an issue) (if I did the math right) sam * On 1/7/2010 01:29 PM, Flying Electron wrote: I'm deciding on what servo drive to use with the mesa FPGA card and it doesn't look too bad since there are not too many low cost options. I'm constrained to a NEMA 23 size motor since a NEMA 23 stepper is on the machine right now and I want it to be a direct swap. So far I've found from searching on google and from people's suggestions here on the mailing list: Drives --- [brushless] Pico Brushless PWM Servo Amp $150 [brushed] Pico PWM Servo Amplifier $125 Motors [brushless] Pico Size 23 Brushless Servo (61ozin continous, 180ozin peak, 1000 CPR) $120 [brushless] Keling KL23BLS-115 Brushless Servo (61ozin continous, 180 ozin peak, 1000 CPR) $134 [brushed] Keling KL23-130-60 Brushed Servo (50ozin continous, 350ozin peak, 1000 CPR) $162 Not Suitable - dmm-tech.com -- RS232 based communication not PWM gecko -- EMC2 cannot control PID loop (step/dir input, not pwm) viper -- EMC2 cannot control PID loop (step/dir input, not pwm) rutex -- EMC2 cannot control PID loop (step/dir input, not pwm) Most of the servo drives I have found have the PID loop built into them. Is this the normal case? Is it possible to run a brushed DC servo with just a simple H-Bridge controlled directly by the PWM output and a direction signal? I was looking at the Freescale MC33886 which I think could make a very simple and cheap H-Bridge. http://search.digikey.com/scripts/DkSearch/dksus.dll?Detailname=MC33886VW-ND http://search.digikey.com/scripts/DkSearch/dksus.dll?Detailname=MC33886VW-ND Anybody know of any companies or products I may have missed in my search? -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.Net email
Re: [Emc-users] PWM input to EMC2
Isn't emc awesome? :) I usually set the screen shot utillity to take a picture after 2 seconds. (with the realtime running sometimes the screen refresh takes a second on slower computers.) sam On 1/13/2010 12:47 PM, Flying Electron wrote: Thanks everyone for all the advice. I got it to work using an encoder measuring the frequency of the pulses from the microcontroller. I put a dial gauge on the panel in axis to watch the pressure and an LED to watch the probe. It is beyond cool being able to see the pressure in realtime while the machine is on. These virtual axis panels are great for saving money instead of getting physical gauges. I included a screenshot of the axis gui. The dial gauge bounces around in realtime as the pressure changes. I guess screenshots and axis previews don't get along? Or maybe it's my video driver. I don't know why it's all messed up where the preview plot is, it looks fine on the screen. http://www.flyingelectron.com/Pics/probe.png The SPI looks very interesting since the AVR microcontroller I am using supports SPI. I need to look into that more after I get the machine up and running again. Kirk Wallace wrote: On Tue, 2010-01-12 at 16:59 -0700, Sebastian Kuzminsky wrote: ... snip Analog input into emc2 might be accomplished by adding SPI support to hostmot2, and writing a driver for an SPI ADC. Some work has been done in this direction by various folks (search the mailing list archives and irc logs if you're curious), but so far nothing has solidified. Just in case: http://www.wallacecompany.com/machine_shop/EMC2/serial_adc/ http://www.wallacecompany.com/machine_shop/EMC2/serial_dac/ -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Jog under PAUSE / tool cnange
I have had really good luck with a generic microswitch for tool length probing. When I tested it - the repeatability was .001 I only set the length for the first tool - it touches the microswitch for reference. The rest of the tools are referenced to that one. Happy with it. http://electronicsam.com/images/KandT/servostart/schem/newcurrentlimit/bottom.JPG http://electronicsam.com/images/KandT/servostart/schem/newcurrentlimit/top.JPG (this one lost vacuum on the perimeter cut.. (murphys law... ) ;) http://electronicsam.com/images/KandT/servostart/amp.JPG sam On 3/19/2010 04:16 AM, Gene Heskett wrote: On Friday 19 March 2010, Slavko Kocjancic wrote: Gene Heskett pravi: On Wednesday 17 March 2010, Slavko Kocjancic wrote: [...] And that sounds like a good idea too. But it needs a flat top, just in case you miss the exact xy spot. :-) That's not a problem. When I go to the woods to collect some mushrooms I don't see it just until I put my foot over it. So mushrooms I pick have nearly all flat top :D Chuckle, several times even. Been there, done that, somebody stole the t- shirt. ;-) -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] C Style Extensions for GCode
well - that is just cool!
Nice work
sam
Flying Electron Inc wrote:
Hi All,
I wrote a python extension for axis that allows C language style extensions
to the GCode if anyone wants to give it a try.
http://tsemsb.blogspot.com/2010/04/cgcc-gcode-with-c-constructs.html
It allows you to write code like this:
// Constants
const float X_Holes = 10;
const float Y_Holes = 10;
// Loop
for (float y = 0; y Y_Holes; y++) {
for (float x = 0; x X_Holes; x++) {
if (x != y) {
G00 Z1
G00 X[x] Y[y]
G01 Z0 F1
G00 Z1
}
}
}
and it gets translated into regular GCode with o-words.
Lawrence
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[Emc-users] Old scales - any hope?
I have started looking at the scales that came with the mill we are working on - I had figured that the where some version of a linear resolver... bit it isn't 1 coil in - 2 out for sin/cos. The way I understand it - the send a 250hz square wave to the outside of each coil. the 2 centertaps are summed together to get the position. (I assume the output of the centertap is the reletive postion comparing it to the input square wave. I was thinking that maybe something like JonE resolver to quadature converter would work - but I am not sure now... We could always resorect the old circuits.. :) but I would rather not. each of the 4 coils measure 114ohms This is the circuit that sent the square wave to the head and summed the centertaps. http://electronicsam.com/images/KandT/conversion/accupinscirc.jpg this is what the head reads... http://electronicsam.com/images/KandT/conversion/accupins.JPG thanks again sam -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Old scales - any hope?
there are actually 4 coils. Each head has 2 shielded cables coming from the head - each cable has 4 conductors + shield. At the controller - the 2 coils on each cable are hooked together to form a center tapped setup. (agian - if I have it right - they excite the 2 outside connections of the 2 center tapped hookups - then the center taps get summed together and shaped. this from trying to read the desciption on the schematic I scanned - plus you can see the coil hookups) :) thanks sam Jon Elson wrote: Andy Pugh wrote: Thinking about this some more, I think it is a quadrature LVDT. As we discussed on IRC it is a lot like an LVDT with multiple armatures. The thing is, if you only have that then you can't infer direction. By having two offset read-heads in quadrature you can tell direction. Well, a classic LVDT is a non-repeating position measuring device. The Farrand Inductosyn can be run like this, but the difference is that the pattern of exciting windings repeats periodically. The Inductosyn has no pole teeth, and the long scale has a continuous zig zag of traces on a ceramic or PCB substrate. Obviously, the scale has low resistance and inductance, therefore it requires a lot of drive current. The pick-up sensor is usually a short length of identical zig zags, with the sin and cos sensor 90 degrees out of phase relative to the long scale. The GE and other sensors were made to offer a similar device but get around the Farrand patents, which were quite well written and precluded any closely similar scheme. Having slots and no coils on the long scale was different enough to not infringe on Farrand. These could be made with 3 coils, and the variation of magnetic coupling between the teeth and the coils changes the amount of excitation that gets to the sense coils. I don't know how you do this with only 2 coils, and it probably restricts the excitation and sense circuits quite a bit. Jon -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.437 / Virus Database: 271.1.1/2804 - Release Date: 04/11/10 06:32:00 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Old scales - any hope?
Here are some more pictures... (top red thing is the read head) http://electronicsam.com/images/KandT/conversion/accpinset1.jpg http://electronicsam.com/images/KandT/conversion/accpinset.jpg This is how I understand it as of today ;) There are 4 coils - they are hooked up in a center tap config (see schem) - 2 sets of 2 coils. An excitation signal (250khz square wave) is sent to the outside connections of the 2 center tapped coils. The center taps are summed together and turned into a square wave. That square wave is shifted compared to the exciter signal depending on the position relative to the .1 pin. Now the way I think the controller did it was this - it had a 250khz clock - they used this to count the shift between the exciter signal and the summed square wave back from the center taps. this would give you 250khz/250hz - 1000 divisions within each pin. thanks sam On 4/11/2010 08:03 PM, Jon Elson wrote: sam sokolik wrote: there are actually 4 coils. Each head has 2 shielded cables coming from the head - each cable has 4 conductors + shield. At the controller - the 2 coils on each cable are hooked together to form a center tapped setup. (agian - if I have it right - they excite the 2 outside connections of the 2 center tapped hookups - then the center taps get summed together and shaped. this from trying to read the desciption on the schematic I scanned - plus you can see the coil hookups) :) I don't know, looking at the jpg of the schematic, it doesn't really look like the windings will work the way you want for the AD chip. It really doesn't look like there is an excitation winding and a pair of sense windings. With 114 Ohms per coil, the drive requirement can't be terribly high, so that may not be a problem. If the AD chip can be made to work, the resolution will be 4096 counts per period of the teeth on the long scale. That probably is OK, as I think these teeth are about 10 per inch. Ah, yes, I see it IS a GE Accupin scale, I had already guessed it might be from your description. The way one of these schemes worked is they drove sine-wave signals in quadrature to the two sin/cos windings, and then looked at the time of the zero crossing on the other winding. That told the position of the windings relative to each other. This one almost sounds like it works the same way, but the description says square wave. So, maybe they are using some analog scheme to also sense the voltage of the output as well as the phase. Anyway, it looks like this may be fairly hard to make work. Jon -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Old scales - any hope?
Here is how the head lines up with the pins (showing that 2 heads line up and 2 are .05 off.) http://electronicsam.com/images/KandT/conversion/accupinlineup.jpg Also I made a mistake in the previous email - the excitation signal going to the heads is 250hz - not 250khz On 4/16/2010 09:02 AM, sam sokolik wrote: Here are some more pictures... (top red thing is the read head) http://electronicsam.com/images/KandT/conversion/accpinset1.jpg http://electronicsam.com/images/KandT/conversion/accpinset.jpg This is how I understand it as of today ;) There are 4 coils - they are hooked up in a center tap config (see schem) - 2 sets of 2 coils. An excitation signal (250khz square wave) is sent to the outside connections of the 2 center tapped coils. The center taps are summed together and turned into a square wave. That square wave is shifted compared to the exciter signal depending on the position relative to the .1 pin. Now the way I think the controller did it was this - it had a 250khz clock - they used this to count the shift between the exciter signal and the summed square wave back from the center taps. this would give you 250khz/250hz - 1000 divisions within each pin. thanks sam On 4/11/2010 08:03 PM, Jon Elson wrote: sam sokolik wrote: there are actually 4 coils. Each head has 2 shielded cables coming from the head - each cable has 4 conductors + shield. At the controller - the 2 coils on each cable are hooked together to form a center tapped setup. (agian - if I have it right - they excite the 2 outside connections of the 2 center tapped hookups - then the center taps get summed together and shaped. this from trying to read the desciption on the schematic I scanned - plus you can see the coil hookups) :) I don't know, looking at the jpg of the schematic, it doesn't really look like the windings will work the way you want for the AD chip. It really doesn't look like there is an excitation winding and a pair of sense windings. With 114 Ohms per coil, the drive requirement can't be terribly high, so that may not be a problem. If the AD chip can be made to work, the resolution will be 4096 counts per period of the teeth on the long scale. That probably is OK, as I think these teeth are about 10 per inch. Ah, yes, I see it IS a GE Accupin scale, I had already guessed it might be from your description. The way one of these schemes worked is they drove sine-wave signals in quadrature to the two sin/cos windings, and then looked at the time of the zero crossing on the other winding. That told the position of the windings relative to each other. This one almost sounds like it works the same way, but the description says square wave. So, maybe they are using some analog scheme to also sense the voltage of the output as well as the phase. Anyway, it looks like this may be fairly hard to make work. Jon -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Old scales - any hope?
the main thing is that it is already on the machine... To replace them with something new would require a total disassemble of the saddle and table.. We will be using the encoders on the servos for position initially - the scales will be more of an experiment... ;) We just found this... http://www.google.com/patents?id=NqpNEBAJprintsec=drawingzoom=4#v=onepageqf=false Gives a better block diagram... (it is a patent to add temp comp to the circuit...) sam On 4/16/2010 12:50 PM, Jon Elson wrote: Andy Pugh wrote: However, I think just applying a 250Hz square wave and an oscilloscope should at least tell you what comes out of the terminals and then you can figure it out from there. A $15 Arduino with a power OP amp can produce the excitation, sample the output, time it to 62nS resolution and convert it to encoder-style pulses. The drive excitation has to be VERY carefully balanced, as the output signal is MUCH smaller than the drive. Other than that, yes, you could probably build a modern circuit with good micro or FPGA to do all the counting, etc. Not completely sure it is worth it. Jon -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Old scales - any hope?
Thanks for the link - they seem to be compatible with the inductosyn type scales.. That is a generation newer than our scales. I did email them for s and g's - but have not heard back Dave wrote: Sam did you get any info from that company in Detroit who has the converter boxes? At the time, I thought the cost was reasonable considering it is a tested unit. Dave On 4/16/2010 2:00 PM, sam sokolik wrote: the main thing is that it is already on the machine... To replace them with something new would require a total disassemble of the saddle and table.. We will be using the encoders on the servos for position initially - the scales will be more of an experiment... ;) We just found this... http://www.google.com/patents?id=NqpNEBAJprintsec=drawingzoom=4#v=onepageqf=false Gives a better block diagram... (it is a patent to add temp comp to the circuit...) sam On 4/16/2010 12:50 PM, Jon Elson wrote: Andy Pugh wrote: However, I think just applying a 250Hz square wave and an oscilloscope should at least tell you what comes out of the terminals and then you can figure it out from there. A $15 Arduino with a power OP amp can produce the excitation, sample the output, time it to 62nS resolution and convert it to encoder-style pulses. The drive excitation has to be VERY carefully balanced, as the output signal is MUCH smaller than the drive. Other than that, yes, you could probably build a modern circuit with good micro or FPGA to do all the counting, etc. Not completely sure it is worth it. Jon -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.437 / Virus Database: 271.1.1/2814 - Release Date: 04/16/10 06:31:00 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Old scales - any hope?
interesting. Chris found this - this is pretty close to the time frame of our machine. probably an eb (one newer iirc) http://www.google.com/patents?id=fhRaEBAJprintsec=abstractzoom=4source=gbs_overview_rcad=0#v=onepageqf=false sam Jan de Kruyf wrote: Hello, Unless I am very wrong this patent is a non-flyer. The old G-E systems had a discriminator that measured the difference in phase between the command pulse train and the feed-back pulse train, and the output of the discriminator was the input to the drive amplifier. So how on earth you can insert a random pulse in the command pulse stream evades me completely. You would just upset the discriminator output and it would have little effect on the actual motion of the machine. And at worse you would lose sync all together like indeed in a stepper setup. Jan On Fri, Apr 16, 2010 at 8:00 PM, sam sokolik sa...@empirescreen.com wrote: the main thing is that it is already on the machine... To replace them with something new would require a total disassemble of the saddle and table.. We will be using the encoders on the servos for position initially - the scales will be more of an experiment... ;) We just found this... http://www.google.com/patents?id=NqpNEBAJprintsec=drawingzoom=4#v=onepageqf=false Gives a better block diagram... (it is a patent to add temp comp to the circuit...) sam On 4/16/2010 12:50 PM, Jon Elson wrote: Andy Pugh wrote: However, I think just applying a 250Hz square wave and an oscilloscope should at least tell you what comes out of the terminals and then you can figure it out from there. A $15 Arduino with a power OP amp can produce the excitation, sample the output, time it to 62nS resolution and convert it to encoder-style pulses. The drive excitation has to be VERY carefully balanced, as the output signal is MUCH smaller than the drive. Other than that, yes, you could probably build a modern circuit with good micro or FPGA to do all the counting, etc. Not completely sure it is worth it. Jon -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.437 / Virus Database: 271.1.1/2814 - Release Date: 04/16/10 06:31:00 -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Detecting limits without switches
I could maybe see monitoring following error... When the servo hit the limit - the error would increase. You could then use some logic that says when the following error reaches a certain amount - trip the 'virtual' limit switch. Maybe.. I could see lots of issues and as gene says - you would want to limit the output to the servos. If you have any I (in the pid) the pid loop will 'wind up' pretty quick sending the servos to maximum. Big picture it seems possible... :) (but I am just thinking out loud) sam On 6/6/2010 11:09 AM, Neil Baylis wrote: Many printers plotters do not use limit switches. Instead, they move the print head slowly towards the end stop until the motor stalls, and then back off from that point a certain distance and that's the home position or soft limit. What, roughly, do I need to do with EMC to get this behavior? Neil -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How does EMC Control 3 Axis Mills with Stepper Motors and Linear Encoders?
The one big advantage is stall recovery. You can just turn the machine back on after the crash and emc still knows where you are. (no re-homing needed). sam On 8/18/2010 10:38 AM, Kirk Wallace wrote: On Tue, 2010-08-17 at 18:11 -0400, Don Stanley wrote: ... snip Did you recognise it is a CNC converted mill that I wanted to move to EMC2? Thanks again Don I still contend that encoder feedback on a stepper system has no proven advantage, unless you have a very special stepper driver that drives the stepper as a high pole count brushless DC servo with a very high count encoder on the motor shaft. Encoders would only be useful for a stepper machine with hand wheels, while being used as a manual machine with a DRO. EMC2 can be configured to do it, but I consider it an academic endeavor, since a plain stepper system would work just as well as is, or a standard servo would work just as well, only faster. I may be wrong, but this is my current understanding. -- This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] How does EMC Control 3 Axis Mills with Stepper Motors and Linear Encoders?
Hmmm - backlash isn't going to get any better using scales - and the machine setup is impossible at best.. backlash is bad bad bad.. as far as your stepper .2 and .1? Direct coupled?That must be taking into account the micro stepping? You cannot depend on micro stepping for accurate positioning. About all you can really count on is full step (and maybe half steps if you are lucky). sam On 8/18/2010 2:15 PM, Don Stanley wrote: Hi Dave, Kirk, Chris, Sam A serious thanks for your input. I'm going to outline my thinking below and would be grateful for your feedback, pro or con. Years ago I converted a new JET Mill (Bridgeport knee knock off) to CNC. The Ball Screw I used (Rockford) was not the stiffest thing on the planet. Although they were a reputable company, I am getting a lot of backlash (apparently flexing the Y arm) during static moves and who knows under load. Also with my current Step Generator and CNC Software supplier I am having to buy a needed new feature upgrade too often. I am hoping EMC2 and linear encoder strips (.0002XY and .0005Z) resolution will make all the above problems go away. The Mill is equipped as follows: - Stepper Motors are 4000 inch pound torque direct coupled to the ball screws and knee lift shaft. - Stepper resolution X Y is .2 and Z is .1 per step. That's better than the brush less DC servo motors I used recently. - The micro stepper motor drivers use 80 Volt DC motor power which kicks the typically slow stepper motors fast enough for milling. - The spindle VFD is analog 0-5 volts. I plan to a filter a PWM or PDM pin for that. - The tool change is manual with a tool length sensor to correct the Z offset. I plan to use the Probe sensor input and a G Code subroutine to do the offset change in EMC2. Thanks again; I am looking forward to your input. Don PS. Please forgive sending your long email back but I'm getting a Lightening storm, got to go! On Wed, Aug 18, 2010 at 12:31 PM, Davee...@dc9.tzo.com wrote: I disagree... If I had high res scales available that could keep up with the slew rates of the axes, I would try to incorporate them into the system. They could compensate for pitch errors in the screws or worn screws. I still think that any backlash may still cause big problems, but you can oftentimes tighten or replace nuts to get rid of that. Here is one axis (see below) that is used in a closed position loop system: This axis drives a feed roller which feeds a strip into a machine. The feedback device - an encoder, has a knurled wheel on the encoder shaft and the encoder wheel is in contact with the strip. We went to a closed loop system since the strip drive is friction driven and tends to slip a little.. With the encoder and the closed position loop, position control is very good even with high feed rates up to 30 inches per second. This setup uses Mesa hardware...and the Hostmot2 driver. This system uses a 5i20 PCI board a 7i47 board since using a LPT port at these speeds is not possible. I think you could do the same thing using an LPT port interface but you would have to go much slower and use the hal components for Stepgen and the encoder counter, etc but I suspect it would work. Dave (Dave911 on the IRC) Section of the INI file [AXIS_0] # # Step timing is 2.2 us steplen + 3.3 us stepspace # That gives 5.5 us step period = 181 khz KHz step freq # #5.25 in diameter roller x 3.1415 = 16.485 inches of feed per rev #16.485/15:1 gearbox = 1.099 inches of feed per rev # # at 2500 pulses per rev on the motor encoder, turns out to be 1819.83 pulses per inch of travel # # was 25 max vel and 60 accel # #A corrected value is entered below. TYPE = LINEAR MAX_VELOCITY = 30 MAX_ACCELERATION = 80 BACKLASH = 0.000 # scale is pulses ouput from EMC2 per inch of material travel SCALE = 2274 MIN_LIMIT = -999.99 MAX_LIMIT = 999.99 #old value #FERROR = 0.050 #MIN_FERROR = 0.005 FERROR = 10.00 #HOME = 0.000 #HOME_OFFSET = 0.10 #HOME_SEARCH_VEL = 0.0 #HOME_LATCH_VEL =0.0 #HOME_USE_INDEX =NO #HOME_IGNORE_LIMITS =YES # these are in nanoseconds DIRSETUP = 3300 DIRHOLD= 3300 STEPLEN= 2200 STEPSPACE = 3300 Here is the hal file section for that axis: # ### # # HAL file for HostMot2 with 3 steppers # # Derived from Ted Hyde's original hm2-servo config # # Based up work and discussion with Seb Peter Jeff # GNU license references - insert here. www.linuxcnc.org # # # # ### # Core EMC/HAL Loads # ### # kinematics
Re: [Emc-users] Mini ITX systems.
it does have a printer port header on the motherboard. sam On 8/26/2010 7:09 PM, Peter Homann wrote: Hi, It doesn't have one. You could use this one instead. http://www.newegg.com/Product/Product.aspx?Item=N82E16813131396 Cheers, Peter. Speaker To-Dirt wrote: Hi Andy: I may be showing my ignorance here, but while searching on your motherboard, because I'm about to do the same thing you are, I found this http://www.newegg.com/Product/Product.aspx?Item=N82E16813121399Tpk=D510MO Where's the parallel port? Am I missing something? Look at some posts last week we had some informative back and forth with links on this very subject. Andrew Message: 6 Date: Thu, 26 Aug 2010 22:08:02 +0100 From: Andy Ibbotsonandyi_w...@btinternet.com Subject: [Emc-users] Mini ITX systems To:emc-users@lists.sourceforge.net Message-ID:af3523a7303846fc9b25ca56960ec...@eeepc Content-Type: text/plain; charset=iso-8859-1 Hello Everyone, I have a question re. systems built around mini ITX motherboards. What I have in mind is to build a system using the Intel D510MO motherboard (good choice re. latency?), picoPSU, solid state SATA disk. I want to minimise the size of the computer so no CD / DVD drives, my question is how do I get EMC2 on to the system? Can I install from a USB memory? Any help will be greatly appreciated. Regards Andy -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users - http://www.homanndesigns.com -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
2 axis moving! http://www.youtube.com/watch?v=QU_O_Z7Vv8c sam On 8/26/2010 4:38 PM, sa...@empirescreen.com wrote: Well - I fail at copy and paste... this should work better. I thought I would give an update on our ongoing project. This is a 60's vintage NC that used hydraulic servos. we are converting it to EMC2 using not quite as old Inland servos. (80's vintage) they are 8 brush low rpm high torque. (with the amc drives we are using - it will be 40ft-lbs peak.) We are using 2 mesa 5i20 boards as we are needing a good 70+ i/o + atleast 7 encoder counters and 5 +/-10v outputs. We are at the point where the machine is waking up. the mesa hardware is awesome (thank to peter and seb for their work). Be sure to watch the 2 videos at the end of this email. lets see if I can create a linear picture show... this is what the machine looked like in the 60s http://electronicsam.com/images/KandT/oldkandt.JPG this is what the machine looks like now http://electronicsam.com/images/KandT/DSCCurrent.JPG getting rid of the old control http://www.electronicsam.com/images/control.jpg this is the old electrical box http://electronicsam.com/images/KandT/conversion/mainelectricalbox.JPG we welded 2 of the same boxes together for new electronics. http://electronicsam.com/images/KandT/conversion/moreelec.jpg here is it mostly hooked up http://electronicsam.com/images/KandT/conversion/mostio.JPG This is the x,z,b gearbox - the old control used 1 hydraulic servo to run all 3 axis http://electronicsam.com/images/KandT/conversion/xaxis/start.JPG open http://electronicsam.com/images/KandT/conversion/xaxis/start.JPG stripped http://electronicsam.com/images/KandT/conversion/xaxis/stripped.JPG shafts extended out so we can hook the servos up. http://electronicsam.com/images/KandT/conversion/xaxis/3shafts.JPG servo plate mounted http://electronicsam.com/images/KandT/conversion/servo/x-zservo_mount.jpg belts (B axis still needs a solution) http://electronicsam.com/images/KandT/conversion/servo/belts.jpeg Because we are still using the z axis drive train that goes up though the saddle - we needed to get the backlash out of it. It uses split gears to do that. Grinding 1 washer thinner takes the backlash out of 5 sets of gears. the washer is the spacer between the 2 lower small gears. http://electronicsam.com/images/KandT/conversion/zaxis/gears.JPG we still have to mount the y axis servo. - The plan is to direct couple into this shaft. http://electronicsam.com/images/KandT/conversion/yaxis/yaxisshaft.JPG here is the tool chain logic working... http://www.youtube.com/watch?v=4nuRea6615s here is the first closed loop movement with the x axis http://www.youtube.com/watch?v=FgOqEz5Tk-Y Getting there :) Very happy with the progress. (I only work on it about once a week.) sam On Thu, 26 Aug 2010 16:27:29 -0500 sa...@empirescreen.com wrote: I thought I would give an update on our ongoing project. This is a 60's vintage NC that used hydraulic servos. we are converting it to EMC2 using not quite as old Inland servos. (80's vintage) they are 8 brush low rpm high torque. (with the amc drives we are using - it will be 40ft-lbs peak.) We are using 2 mesa 5i20 boards as we are needing a good 70+ i/o + atleast 7 encoder counters and 5 +/-10v outputs. We are at the point where the machine is waking up. the mesa hardware is awesome (thank to peter and seb for their work). Be sure to watch the 2 videos at the end of this email. lets see if I can create a linear picture show... this is what the machine looked like in the 60s http://electronicsam.com/images/KandT/oldkandt.JPG this is what the machine looks like now http://electronicsam.com/images/KandT/DSCCurrent.JPG getting rid of the old control http://www.electronicsam.com/images/control.jpg this is the old electrical box http://electronicsam.com/images/Kand...ctricalbox.JPG we welded 2 of the same boxes together for new electronics. http://electronicsam.com/images/Kand...n/moreelec.jpg here is it mostly hooked up http://electronicsam.com/images/Kand...ion/mostio.JPG This is the x,z,b gearbox - the old control used 1 hydraulic servo to run all 3 axis http://electronicsam.com/images/Kand...axis/start.JPG open http://electronicsam.com/images/Kand...axis/start.JPG stripped http://electronicsam.com/images/Kand...s/stripped.JPG shafts extended out so we can hook the servos up. http://electronicsam.com/images/Kand...is/3shafts.JPG servo plate mounted http://electronicsam.com/images/Kand...ervo_mount.jpg belts (B axis still needs a solution) http://electronicsam.com/images/Kand...rvo/belts.jpeg Because we are still using the z axis drive train that goes up though the saddle - we needed to get the backlash out of it. It uses split gears to do that. Grinding 1 washer thinner takes the backlash out of 5 sets of gears. Don't think the previous
Re: [Emc-users] Servos cannot calm down -- maybe I should go away from velocity mode in amplifiers?
shouldn't this be done systematically? (it could be done all in emc with halscope) First tune the velocity loop in amp -send a step response to the drive (square wave) and scope the responce. -Adjust the loop gain of the amp to get the best waveform - (match the square wave the best you can) Then from that point Tune the PID FF0-FF2 I found what got me close is something Chris had said on irc. Make sure you calculate the output scale for what you want. Like for me 200ipm at .9v out (200/60)/.9=3.7 for output_scale. I made sure FF1 was 1 (set P to 10 and D to 1 iirc for starters) than I commanded a slow move (1ipm) and adjusted the gain of the amp until the following error was 0 or as close as I could get it. Instantly - my movement was smooth with no overshoot. I still need to tune better - but that sets the amp very well. sam (sorry - I seem to be rambling) On 9/13/2010 9:37 AM, Igor Chudov wrote: I posted a message to this list that my servo motors cannot calm down after a motion. Right now my amplifiers are set to velocity mode and I use a tachometer for velocity feedback. So, the amps themselves have a velocity loop that they close. There is essentially two loops per axis, one in EMC2 and one in the amplifier. Unfortunately, my efforts to tune PID to calm the mill down, have not been successful. If I turn down the gain parameters, the mill starts getting following errors, if I turn them up, the motors have hard times calming down. If, when the mill cannot calm down, I hit F2 (which for me inhibits the amps), and then F2 again, the bothersome buzzing stops. I am now thinking that I should reconsider my entire approach and use a different mode to avoid two loops per axis. My amplifiers offer the following modes: 1) Velocity (tachometer) mode, which is the current setting 2) Current or Torque mode (amplifier controls torque/current) 3) Voltage mode (amplifier maintains voltage) 4) IR compensation (not sure what it is exactly, probably compensated for resistance losses in windings). So... Would you think that I should switch to, say, torque mode or voltage mode? Any thoughts? - Igor -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] FF0, FF1, FF2
A few things to look at - My inital hookup of the amc drives to the mesa hardware was wrong. ( I had just hooked +/- up to the drive with the shield hooked to ground.) I did some searching and found this http://www.a-m-c.com/download/document/support/general/instnotes.pdf Look at section 3.1 - I used the wiring examples there. The thing smoothed out. Also - this goes into tuning http://www.a-m-c.com/download/document/support/analog/tuning_procedure.pdf On 9/14/2010 8:34 AM, Igor Chudov wrote: Guys, honest, I did look for explanations and did not find enough. Could someone explain what are FF0, FF1 and FF2 parameters pertaining to tuning a servo loop? Thanks - Igor -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Rigid tapping on a CNC mill
all you need is a quadature encoder + index installed on your spindle. (and some way to get it into emc.) I don't know if you have the same mill as jonE - but he used an existing gear in his mill as an encoder. http://pico-systems.com/bridge_spindle.html sam emc w On 9/27/2010 11:21 AM, Igor Chudov wrote: On Mon, Sep 27, 2010 at 11:56 AM, Jon Andersonjanders1...@comcast.net wrote: On 9/27/2010 7:32 AM, Igor Chudov wrote: I have a possible job to do to drill and tap 200 holes. The more I think, the more it seems that I would be served well if I get rigid tapping to work. Thought just occurred to me, EMC will thread mill, right? Given the number of holes, you might consider popping for a Thriller made by Emuge. Properly programmed, it will drill, thread, and chamfer the hole. Emuge has details of how to program the thread milling, use that data in a subroutine. I'm not familiar with subroutine calls with repeats, but done properly, I think you could get away with a sub call for one row, a sub call repeating that row call in the other axis, and the subroutine itself. A potential job several years ago would have involved huge amounts of drilling and tapping 1/4-20 blind holes. Had the job come through I would have quickly gotten into a machining center. I contacted Emuge for some details on cycle time. Given a 10K spindle and proper coolant, an engineer told me to expect a cycle time of a few seconds per hole. You don't have that RPM or high volume coolant, but it should give you an idea. Of course, being mostly hobby, gotta weigh time vs money... I have high enough volume coolant for this application. My top RPM for a long job is 2,600 RPM. -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] handwheel tapping
Maybe you could use what andy did with his gear hobbing? I don't know exactly how he did it - (maybe using the gearing hal comp?) I could see using a vcp that you would enter the tpi and it woud slave the spindle to z with that ratio. Then as you jogged the z axis - the spindle would follow. http://www.youtube.com/watch?v=ZhICrb0Tbn4 sam On 9/30/2010 8:41 AM, Stuart Stevenson wrote: Gentlemen, I am working on a project on the Enshu. I am not sure how valuable it will be but I sure want to try it. I want to tap threads using the MPG. The spindle drive is a full servo. The spindle motor has a resolver for feedback to the spindle drive. The EMC2 DAC signal to the spindle drive is +-10V. I have found a quadrature signal out of the spindle drive. This spindle drive uses the resolver feedback to generate this quadrature signal (A and B). The spindle has a prox and amplifier that feeds a signal into a daughterboard on the spindle drive for spindle orientation during tool change. The daughter board has a pin that outputs a pulse once per revolution corresponding to the radial position of the spindle. I intend to use the A and B as encoder feedback into EMC and the orientation pulse as an index pulse into EMC. This will allow full servo control of the spindle as a C axis. I would like ideas on the best way to implement this. I would like to have the spindle set up as a C axis but without a C axis display on the screen (unless I am using the C axis as an actual C axis but that is another project). I don't think I NEED any display for the spindle for this project. I think I would like to be able to command a G code to engage the spindle and an F code for feedrate to move the C and Z in a coordinated fashion. Maybe I am thinking backwards. Maybe driving the Z axis with the MPG and the C (spindle) coordinated with the Z is the best way. Since I am thinking 'manual' then maybe a button is better than a G code. If I had a button how would I tell the machine the pitch of the thread? Maybe a screen display like the FO/SO/MV displays. This would adjust in proper increments per the chosen units and allow the MPG to set the pitch prior to engaging the coordination button. thoughts - comments - ideas thanks Stuart -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
3 axis moving! ;) http://www.youtube.com/watch?v=pOHL_KlUdqw sam On 9/6/2010 11:38 AM, sam sokolik wrote: 2 axis moving! http://www.youtube.com/watch?v=QU_O_Z7Vv8c sam On 8/26/2010 4:38 PM, sa...@empirescreen.com wrote: Well - I fail at copy and paste... this should work better. I thought I would give an update on our ongoing project. This is a 60's vintage NC that used hydraulic servos. we are converting it to EMC2 using not quite as old Inland servos. (80's vintage) they are 8 brush low rpm high torque. (with the amc drives we are using - it will be 40ft-lbs peak.) We are using 2 mesa 5i20 boards as we are needing a good 70+ i/o + atleast 7 encoder counters and 5 +/-10v outputs. We are at the point where the machine is waking up. the mesa hardware is awesome (thank to peter and seb for their work). Be sure to watch the 2 videos at the end of this email. lets see if I can create a linear picture show... this is what the machine looked like in the 60s http://electronicsam.com/images/KandT/oldkandt.JPG this is what the machine looks like now http://electronicsam.com/images/KandT/DSCCurrent.JPG getting rid of the old control http://www.electronicsam.com/images/control.jpg this is the old electrical box http://electronicsam.com/images/KandT/conversion/mainelectricalbox.JPG we welded 2 of the same boxes together for new electronics. http://electronicsam.com/images/KandT/conversion/moreelec.jpg here is it mostly hooked up http://electronicsam.com/images/KandT/conversion/mostio.JPG This is the x,z,b gearbox - the old control used 1 hydraulic servo to run all 3 axis http://electronicsam.com/images/KandT/conversion/xaxis/start.JPG open http://electronicsam.com/images/KandT/conversion/xaxis/start.JPG stripped http://electronicsam.com/images/KandT/conversion/xaxis/stripped.JPG shafts extended out so we can hook the servos up. http://electronicsam.com/images/KandT/conversion/xaxis/3shafts.JPG servo plate mounted http://electronicsam.com/images/KandT/conversion/servo/x-zservo_mount.jpg belts (B axis still needs a solution) http://electronicsam.com/images/KandT/conversion/servo/belts.jpeg Because we are still using the z axis drive train that goes up though the saddle - we needed to get the backlash out of it. It uses split gears to do that. Grinding 1 washer thinner takes the backlash out of 5 sets of gears. the washer is the spacer between the 2 lower small gears. http://electronicsam.com/images/KandT/conversion/zaxis/gears.JPG we still have to mount the y axis servo. - The plan is to direct couple into this shaft. http://electronicsam.com/images/KandT/conversion/yaxis/yaxisshaft.JPG here is the tool chain logic working... http://www.youtube.com/watch?v=4nuRea6615s here is the first closed loop movement with the x axis http://www.youtube.com/watch?v=FgOqEz5Tk-Y Getting there :) Very happy with the progress. (I only work on it about once a week.) sam On Thu, 26 Aug 2010 16:27:29 -0500 sa...@empirescreen.com wrote: I thought I would give an update on our ongoing project. This is a 60's vintage NC that used hydraulic servos. we are converting it to EMC2 using not quite as old Inland servos. (80's vintage) they are 8 brush low rpm high torque. (with the amc drives we are using - it will be 40ft-lbs peak.) We are using 2 mesa 5i20 boards as we are needing a good 70+ i/o + atleast 7 encoder counters and 5 +/-10v outputs. We are at the point where the machine is waking up. the mesa hardware is awesome (thank to peter and seb for their work). Be sure to watch the 2 videos at the end of this email. lets see if I can create a linear picture show... this is what the machine looked like in the 60s http://electronicsam.com/images/KandT/oldkandt.JPG this is what the machine looks like now http://electronicsam.com/images/KandT/DSCCurrent.JPG getting rid of the old control http://www.electronicsam.com/images/control.jpg this is the old electrical box http://electronicsam.com/images/Kand...ctricalbox.JPG we welded 2 of the same boxes together for new electronics. http://electronicsam.com/images/Kand...n/moreelec.jpg here is it mostly hooked up http://electronicsam.com/images/Kand...ion/mostio.JPG This is the x,z,b gearbox - the old control used 1 hydraulic servo to run all 3 axis http://electronicsam.com/images/Kand...axis/start.JPG open http://electronicsam.com/images/Kand...axis/start.JPG stripped http://electronicsam.com/images/Kand...s/stripped.JPG shafts extended out so we can hook the servos up. http://electronicsam.com/images/Kand...is/3shafts.JPG servo plate mounted http://electronicsam.com/images/Kand...ervo_mount.jpg belts (B axis still needs a solution) http://electronicsam.com/images/Kand...rvo/belts.jpeg Because we are still using the z axis drive train that goes up though the saddle - we needed to get the backlash out of it. It uses split
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
Worked a bit on the tool changer arm. http://www.youtube.com/watch?v=ovxW8TKBGWU sam On 10/5/2010 10:15 AM, sam sokolik wrote: 3 axis moving! ;) http://www.youtube.com/watch?v=pOHL_KlUdqw sam On 9/6/2010 11:38 AM, sam sokolik wrote: 2 axis moving! http://www.youtube.com/watch?v=QU_O_Z7Vv8c sam On 8/26/2010 4:38 PM, sa...@empirescreen.com wrote: Well - I fail at copy and paste... this should work better. I thought I would give an update on our ongoing project. This is a 60's vintage NC that used hydraulic servos. we are converting it to EMC2 using not quite as old Inland servos. (80's vintage) they are 8 brush low rpm high torque. (with the amc drives we are using - it will be 40ft-lbs peak.) We are using 2 mesa 5i20 boards as we are needing a good 70+ i/o + atleast 7 encoder counters and 5 +/-10v outputs. We are at the point where the machine is waking up. the mesa hardware is awesome (thank to peter and seb for their work). Be sure to watch the 2 videos at the end of this email. lets see if I can create a linear picture show... this is what the machine looked like in the 60s http://electronicsam.com/images/KandT/oldkandt.JPG this is what the machine looks like now http://electronicsam.com/images/KandT/DSCCurrent.JPG getting rid of the old control http://www.electronicsam.com/images/control.jpg this is the old electrical box http://electronicsam.com/images/KandT/conversion/mainelectricalbox.JPG we welded 2 of the same boxes together for new electronics. http://electronicsam.com/images/KandT/conversion/moreelec.jpg here is it mostly hooked up http://electronicsam.com/images/KandT/conversion/mostio.JPG This is the x,z,b gearbox - the old control used 1 hydraulic servo to run all 3 axis http://electronicsam.com/images/KandT/conversion/xaxis/start.JPG open http://electronicsam.com/images/KandT/conversion/xaxis/start.JPG stripped http://electronicsam.com/images/KandT/conversion/xaxis/stripped.JPG shafts extended out so we can hook the servos up. http://electronicsam.com/images/KandT/conversion/xaxis/3shafts.JPG servo plate mounted http://electronicsam.com/images/KandT/conversion/servo/x-zservo_mount.jpg belts (B axis still needs a solution) http://electronicsam.com/images/KandT/conversion/servo/belts.jpeg Because we are still using the z axis drive train that goes up though the saddle - we needed to get the backlash out of it. It uses split gears to do that. Grinding 1 washer thinner takes the backlash out of 5 sets of gears. the washer is the spacer between the 2 lower small gears. http://electronicsam.com/images/KandT/conversion/zaxis/gears.JPG we still have to mount the y axis servo. - The plan is to direct couple into this shaft. http://electronicsam.com/images/KandT/conversion/yaxis/yaxisshaft.JPG here is the tool chain logic working... http://www.youtube.com/watch?v=4nuRea6615s here is the first closed loop movement with the x axis http://www.youtube.com/watch?v=FgOqEz5Tk-Y Getting there :) Very happy with the progress. (I only work on it about once a week.) sam On Thu, 26 Aug 2010 16:27:29 -0500 sa...@empirescreen.comwrote: I thought I would give an update on our ongoing project. This is a 60's vintage NC that used hydraulic servos. we are converting it to EMC2 using not quite as old Inland servos. (80's vintage) they are 8 brush low rpm high torque. (with the amc drives we are using - it will be 40ft-lbs peak.) We are using 2 mesa 5i20 boards as we are needing a good 70+ i/o + atleast 7 encoder counters and 5 +/-10v outputs. We are at the point where the machine is waking up. the mesa hardware is awesome (thank to peter and seb for their work). Be sure to watch the 2 videos at the end of this email. lets see if I can create a linear picture show... this is what the machine looked like in the 60s http://electronicsam.com/images/KandT/oldkandt.JPG this is what the machine looks like now http://electronicsam.com/images/KandT/DSCCurrent.JPG getting rid of the old control http://www.electronicsam.com/images/control.jpg this is the old electrical box http://electronicsam.com/images/Kand...ctricalbox.JPG we welded 2 of the same boxes together for new electronics. http://electronicsam.com/images/Kand...n/moreelec.jpg here is it mostly hooked up http://electronicsam.com/images/Kand...ion/mostio.JPG This is the x,z,b gearbox - the old control used 1 hydraulic servo to run all 3 axis http://electronicsam.com/images/Kand...axis/start.JPG open http://electronicsam.com/images/Kand...axis/start.JPG stripped http://electronicsam.com/images/Kand...s/stripped.JPG shafts extended out so we can hook the servos up. http://electronicsam.com/images/Kand...is/3shafts.JPG servo plate mounted http://electronicsam.com/images/Kand...ervo_mount.jpg belts (B axis still needs a solution) http://electronicsam.com/images/Kand...rvo/belts.jpeg
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
I still have to really tune all the axis. (velocity mode amps seem to be pretty forgiving - all I did so far was calculate the output scale and adjust the following error at a slow ipm by adjusting the amps loop gain.) (P=20 D=1 FF1 =1) We need to get something hooked in for the B axis. I cannot wait to try the locked rotorys that Chris added emc. (our B axis is lifted before it is rotated. It sits on a coupling that gives it 5 degree increments. ) Then the pallet transferring needs to be worked out. No major problems so far. We have been fixing a lot of little issues like oiling and such. sam On 10/18/2010 5:16 AM, Mark Wendt (Contractor) wrote: Schweet! What else do you have left to do Sam? Mark At 09:44 AM 10/17/2010, you wrote: I think we have the spindle/tool change working well. Next is pallet change and B axis. This video shows it find the tool - rapid to the g30 home tool change position - then spindle orient and then transfer the tool. http://www.youtube.com/watch?v=KplU8hkI0AQ sam -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
pallet load/unload. still have to copy the ladder for the other pallet station. http://www.youtube.com/watch?v=9xDPqFXo_5w sam On 10/18/2010 8:17 AM, sam sokolik wrote: I still have to really tune all the axis. (velocity mode amps seem to be pretty forgiving - all I did so far was calculate the output scale and adjust the following error at a slow ipm by adjusting the amps loop gain.) (P=20 D=1 FF1 =1) We need to get something hooked in for the B axis. I cannot wait to try the locked rotorys that Chris added emc. (our B axis is lifted before it is rotated. It sits on a coupling that gives it 5 degree increments. ) Then the pallet transferring needs to be worked out. No major problems so far. We have been fixing a lot of little issues like oiling and such. sam On 10/18/2010 5:16 AM, Mark Wendt (Contractor) wrote: Schweet! What else do you have left to do Sam? Mark At 09:44 AM 10/17/2010, you wrote: I think we have the spindle/tool change working well. Next is pallet change and B axis. This video shows it find the tool - rapid to the g30 home tool change position - then spindle orient and then transfer the tool. http://www.youtube.com/watch?v=KplU8hkI0AQ sam -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
Yes - that would be me. I would like to say the camera adds 40lbs. ;) sam On 10/28/2010 9:00 AM, Mark Wendt wrote: Sweet! Izzat you in the red hat? Mark On 10/28/2010 09:33 AM, sam sokolik wrote: pallet load/unload. still have to copy the ladder for the other pallet station. http://www.youtube.com/watch?v=9xDPqFXo_5w sam -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
Have the B axis hacked together. This is more of an indexer as it has a 72 tooth curvic coupling that the table sit on which gives us 5 degree indexes. http://electronicsam.com/images/KandT/conversion/curvicfoot.jpg http://electronicsam.com/images/KandT/conversion/curvictogether.jpg (taken out of our parts machine) So far so good. The locking rotaries that Chris added works very well. I think I need to add a little delay after the unlock switch is tripped before the motion starts. The first movement in both videos are the home to index only. The table lifts off of its curvic coupling rotates until it finds the index - rotates back to a point that will place it so the coupling will line up - then re-clamps the table. http://www.youtube.com/watch?v=vLE4lzPcEo8 http://www.youtube.com/watch?v=gpz1tgTRyGc Getting there!! sam On 10/28/2010 9:23 AM, sam sokolik wrote: Yes - that would be me. I would like to say the camera adds 40lbs. ;) sam On 10/28/2010 9:00 AM, Mark Wendt wrote: Sweet! Izzat you in the red hat? Mark On 10/28/2010 09:33 AM, sam sokolik wrote: pallet load/unload. still have to copy the ladder for the other pallet station. http://www.youtube.com/watch?v=9xDPqFXo_5w sam -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book Blueprint to a Billion shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Home to index oddness (and work around)
So - as I was setting up the home to index without the servo actually hooked up to anything - the first time it find the index I got a nasty oscillation on the move to the home position. (or if I would rotate so the home to index would find the next index) - really any time the position actually got reset. my axis is rotory input scale is 2032 per degree home LATCH_VEL was .1 deg/sec (I was going slow just for inital setup to see what was happening) This is what would happen on the initial home (or when it would find a new index). http://imagebin.ca/img/5j6mrV6v.png If it didn't have to reset position (finding the same index) http://imagebin.ca/img/G3B39N.png After fooling around with it - what seemed to fix it. (never happened again so far) was to increase the LATCH_VEL to 1. Though I would throw this out there in case anyone runs across this. (hardware mesa 5i20 and 7i48) sam -- The Next 800 Companies to Lead America's Growth: New Video Whitepaper David G. Thomson, author of the best-selling book Blueprint to a Billion shares his insights and actions to help propel your business during the next growth cycle. Listen Now! http://p.sf.net/sfu/SAP-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Retrofitting a manual lathe, off the wall idea? Clamp-on CNC attachment.
Like this? http://www.hoffhilk.net/cgi-bin/mnlist.cgi?hoffhilk41/140 sam On 11/17/2010 9:18 AM, Jon Elson wrote: Igor Chudov wrote: What I mean by this is as follows: I would move tailstock and carriage as far to the right as possible to make room. I would take a big aluminum plate and mill it to fit on the lathe vee-ways, so that if I clamp it to the lathe bed it will stay solidly in one place. There was actually a commercial CNC retrofit that worked approximately like that. I think it clamped a small XY (really XZ in this case) stage to the toolpost of a standard manual lathe, but maybe it really just clamped to the bed, I've never seen one. But, it would never be as rigid as the original lathe, and I hate to give up the rigidity of my lathe. The way this thing works now, I get a grin every time I fire it up, just cut material, no need to worry about chatter or anything else. I think a well thought out CNC retrofit could be made such that it only slightly impacts the manual use of the lathe. Take out the threading leadscrew and half nuts, as you would always want to use CNC for threading. With CNC, you can thread at a much higher RPM, and that is usually a benefit. A servo drive adapted to the X handwheel shouldn't affect the manual use of that axis. With some ingenuity, it should be easy to install the CNC ballscrew where the threading leadscrew went. The only tricky part might be making it easy to connect or disconnect the ballnut from the apron, as it might end up on the back or inside the apron. But, maybe just setting it up with the ballnut to the side of the apron would make that simple. Line up the nut and drop in a couple bolts, and it is a CNC. Pull out the bolts and run the ballnut to the end of the leadscrew, and it is a manual lathe without threading. And, of course, keep all the parts so you could put it back to completely manual use in short order. Jon -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Big Iron
Our KT has boxed ways with recirculating roller bearings. http://www.electronicsam.com/images/KandT/conversion/tikkoway.JPG (isn't the exact type but similar) - so each axis has 12 each. sam On 11/18/2010 11:15 AM, Jon Elson wrote: Viesturs La-cis wrote: if that is just a base for machine, I suspect that the machine itself also will be very massive and very heavy to provide for rigidity and vibration damping in order to achieve the high precision in hard-to-machine materials. so the question is - what kind of bearings/slides are there to be used and what kind of actuators are to be used for such a machine? the same old Hiwin rails, but 3 or 4 instead of one and same old ballscrews with some extreme 10 diameter? Some of the very large machines are hydrostatic. They look very much like conventional box ways, but have an oil port in the center, and and a hydraulic pump provides a steady flow of oil to the bearing pad. There is usually some scheme of bladders or wipers and a scavenge pump to return the oil to the lube system. Stuart Stevenson at MPM has a Gidding and Lewis horizontal boring mill like that, I think the table is about 50 feet long. Jon -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today http://p.sf.net/sfu/msIE9-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Seeking ideas how to sync an AC generator to 60 HZ average.
Sounds like mainly he want his old 60cycle clocks to work correctly. :) sam On 11/23/2010 8:23 AM, Andy Pugh wrote: On 23 November 2010 14:06, John Kasunichjmkasun...@fastmail.fm wrote: My next project is a remote off grid 60 HZ power unit. I think this has nothing to do with transitions to/from utility power. Ah, in that case, why does it matter? -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Index Basics, OT: leaving stepppers
we have a gantry machine that we setup with 2 switches hooked in series for each axis. One is on the linear slide - one runs off the timing pully. When we home - the machine runs until it closes the switch on the linear slide - then because the switch are hooked in series - the switch that is activated by a tab on the timing pully is what emc sees as the home switch. pretty darn accurate. sam On 11/24/2010 2:41 PM, Edward Bernard wrote: So the flag could be a something like a single hall sensor and magnet as opposed to a quadrature encoder? - Original Message From: Kirk Wallacekwall...@wallacecompany.com To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Sent: Wed, November 24, 2010 1:43:23 PM Subject: Re: [Emc-users] Index Basics, OT: leaving stepppers On Wed, 2010-11-24 at 10:46 -0800, Edward Bernard wrote: What is a screw flag. An encoder? An encoder index or a flag that allows one to reproduce the same position within .0005, or whatever the application calls for. I would not trust most home switch configurations by themselves. They should be ANDed with a sensor with a mechanical advantage, such as on the lead screw or axis motor shaft. The home switch gets you within one turn of the flag or index, sensing the flag gets you home. Currently, on my mill, I have markers on each axis. I jog each axis to line up the makers, then watch the hand wheels and jog to line up 0 on each dial, then I press home for each axis in AXIS. Using a home switch could replace the markers. Using a flag or index, could replace the dials, and allow EMC2 to automate the home sequence. When you know where your home is, you know where your fixtures and soft limits are. -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Watchdog Sizing
actually - really? we could get it - just paying for your time? thanks sam On 12/8/2010 1:25 PM, Roland Jollivet wrote: I was wondering, can a fault ever occur with EMC where the frequency of the charge pump frequency increases?? This would keep the charge pump detector 'up', but a uP would detect an error condition. Regards Roland On 8 December 2010 20:53, John Kasunichjmkasun...@fastmail.fm wrote: On 4 December 2010 00:46, Kirk Wallacekwall...@wallacecompany.com wrote: I'm working on using an ATtiny to watch EMC2's charge pump. Why not use a charge pump circuit to watch the charge pump signal? That is what it was designed for, and is probably the most fail-safe solution. The timeout period is set by the capacitors and resistors you choose, and can't get accidentally changed or disabled. A charge pump circuit consists of two diodes, one small capacitor (a few hundred pF or a few nF), one medium capacitor (a few tens of nF), and a resistor. Also needed is something to look at its output and turn off the dangerous stuff if the output drops too low. That can be as simple as a transistor driving a relay coil, or you could use a schmidt trigger input logic gate followed by whatever you need to drive. No microcontroller, no programming, no configuration, no bits. Analog lives! John Kasunich -- John Kasunich jmkasun...@fastmail.fm -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
fully auto! (pallet tranfer) could use a little optimization - but I am happy with it. (because it works ;)) http://www.youtube.com/watch?v=objyMqAHUNU http://www.youtube.com/watch?v=CYA5uEwLSTA right now I have a few buttons on a pyvcp pannel to do activate the cycles (offload pallet, swap pallets, Load pallet) and plan to activate it with M1XX codes in the future. sam On 11/14/2010 9:30 AM, sa...@empirescreen.com wrote: Yes - first cut! I forgot - this is where the timing gear is going http://www.electronicsam.com/images/KandT/conversion/spindle/belvel.JPG smallest hex. sam On Sun, 14 Nov 2010 06:59:27 -0500 Mark Wendt (Contractor)mark.we...@nrl.navy.mil wrote: Sam, Very neat! It's been an enjoyable watch as you bring this big machine back to life. Is that the first cut(s) on a part you've done since bringing 'er up? Mark At 09:51 PM 11/13/2010, you wrote: Did a little milling. Needed to cut a hex in the center of a timing pully for the encoder that will be on the spindle for rigid tapping (and maybe closed loop speed control) http://www.youtube.com/watch?v=RW6eXiMoFp8 this is the hex on the end of the spindle that it will be mounted to. http://www.electronicsam.com/images/KandT/conversion/testing/DSCF1231.JPG kinda cool picture. http://www.electronicsam.com/images/KandT/conversion/testing/DSCF1235.JPG sam -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool change challenge (Advanced Configuration forum)
I would vote mechanical also - That is how are old machine does it. It was pretty easy to setup. (I actually wrote a comp for the spindle gearbox/index for this machine). it sets the transmission into 'lock' mode then creeps into the dog. Checks to see that the spindle is at 0 rpm and then sets a 'spindle is locked' bit. http://www.youtube.com/watch?v=KplU8hkI0AQ sam On 12/9/2010 4:20 PM, Chris Radek wrote: On Wed, Dec 08, 2010 at 06:21:03PM -0800, Gary McRobert wrote: Still undecided as how to resolve the tool change challenge. I think you are asking about how to do spindle orient. Having used machines with vfd+pid orient and machines with mechanical orient and lock, I have to say the mechanical scheme wins, hands down. A full servo spindle would orient fine -- but if you don't have it, I suggest trying hard to come up with a mechanical orient stop, and use the jog feature of the vfd to get there. It should have a switch so when it's done the vfd can know to stop jogging. Chris -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
had some time to do some tuning. Getting there - I am pretty new to it. http://www.electronicsam.com/images/KandT/conversion/testing/tuning.png That is a .1 move at about 25ipm - the peak at the begining and end are the acc/decel. it peaks at .00017. It is a bit better than that - I had to retune a little after I turned up the current limit on all the amps to maximum. :) I have the ferror set to .001 right now and did a bit of machining with no issues. sam ps - that should give us about 16000lbs peak and 8000lbs of force continuous. :) On 12/09/2010 08:09 AM, sam sokolik wrote: fully auto! (pallet tranfer) could use a little optimization - but I am happy with it. (because it works ;)) http://www.youtube.com/watch?v=objyMqAHUNU http://www.youtube.com/watch?v=CYA5uEwLSTA right now I have a few buttons on a pyvcp pannel to do activate the cycles (offload pallet, swap pallets, Load pallet) and plan to activate it with M1XX codes in the future. sam On 11/14/2010 9:30 AM, sa...@empirescreen.com wrote: Yes - first cut! I forgot - this is where the timing gear is going http://www.electronicsam.com/images/KandT/conversion/spindle/belvel.JPG smallest hex. sam On Sun, 14 Nov 2010 06:59:27 -0500 Mark Wendt (Contractor)mark.we...@nrl.navy.mil wrote: Sam, Very neat! It's been an enjoyable watch as you bring this big machine back to life. Is that the first cut(s) on a part you've done since bringing 'er up? Mark At 09:51 PM 11/13/2010, you wrote: Did a little milling. Needed to cut a hex in the center of a timing pully for the encoder that will be on the spindle for rigid tapping (and maybe closed loop speed control) http://www.youtube.com/watch?v=RW6eXiMoFp8 this is the hex on the end of the spindle that it will be mounted to. http://www.electronicsam.com/images/KandT/conversion/testing/DSCF1231.JPG kinda cool picture. http://www.electronicsam.com/images/KandT/conversion/testing/DSCF1235.JPG sam -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Centralized Desktop Delivery: Dell and VMware Reference Architecture Simplifying enterprise desktop deployment and management using Dell EqualLogic storage and VMware View: A highly scalable, end-to-end client virtualization framework. Read more! http://p.sf.net/sfu/dell-eql-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
Thanks! the drives are what is limiting.. They are 20a continuous and 40a peak. The servos are pretty close to an amp per ft-lb. with a 2:1 belt drive - that gives us 80ft-lb peak at the screws. That is pretty close to what the old hydraulic servos. sam On 12/11/2010 08:38 PM, Jon Elson wrote: sam sokolik wrote: had some time to do some tuning. Getting there - I am pretty new to it. http://www.electronicsam.com/images/KandT/conversion/testing/tuning.png That is a .1 move at about 25ipm - the peak at the begining and end are the acc/decel. it peaks at .00017. It is a bit better than that - I had to retune a little after I turned up the current limit on all the amps to maximum. :) I have the ferror set to .001 right now and did a bit of machining with no issues. Getting there? I think you ARE there! peak error below 2 tenths sounds very good to me. sam ps - that should give us about 16000lbs peak and 8000lbs of force continuous. :) Yikes, those must be some BIG servos! You want to be awfully careful about crashing a machine that can deliver that much linear force to things. Jon -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Spindle encoder, what scale to use for rigid tapping
video! :) sam On 12/17/2010 7:55 AM, Igor Chudov wrote: Thanks guys. It works great now. i On Fri, Dec 17, 2010 at 5:53 AM, John Thorntonbjt...@gmail.com wrote: There are several spindle examples in the Integrators manual. John Igor Chudov wrote: I am realizing that I am not sure what scale should I use for rigid tapping. Should I configure EMC2 so that a single revolution of the spindle results in the spindle position of 1.0? Also, another question. Does anyone who has rigid tapping, have a .ini file that they can share? I am specifically not sure how to tie my input to spindle speed. When I try G33.1, EMC2 errors out and says spindle is not in motion. I believe that I need to tie my input somehow to spindle speed that EMC2 knows how to read, but I am not sure what variable to use. Thanks i -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
Last major hardware mod (except for a control panel) This is the encoder for the spindle.. This will allow for rigid tapping. Heating up the timing gear http://www.electronicsam.com/images/KandT/conversion/spindle/timinggear.JPG installed http://www.electronicsam.com/images/KandT/conversion/spindle/spindletiminggear.JPG Now just need to come up with a bracket (and a belt guide on the encoder pully) http://www.electronicsam.com/images/KandT/conversion/spindle/spindleencoder.JPG sam On 12/12/2010 09:25 PM, Jon Elson wrote: sam sokolik wrote: Thanks! the drives are what is limiting.. They are 20a continuous and 40a peak. The servos are pretty close to an amp per ft-lb. with a 2:1 belt drive - that gives us 80ft-lb peak at the screws. That is pretty close to what the old hydraulic servos. I wouldn't call 16000 Lbs linear force limiting. It sounds QUITE sufficient for such a machine. You don't expect a machine like that to be doing high speed contouring, but I suspect it can probably do anything that the available spindle speed makes practical. Jon -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
well - we are not 100% sure. We started with a similar sized pair of gears but could not find a belt that fit them. So we found this pair in our parts bin (we call 2 pole buildings and a barn our parts bin.) They are XL and we know the we can get belts. :) We think they started life as a drive for a line printer belt. where ever other tooth was a letter. That is blowing the dust off the memory wear house. We could be wrong. sam On 12/19/2010 10:25 AM, Dave wrote: I've never seen belt pulleys like that. Are the skipped teeth just to minimize machining or is there another purpose? Dave On 12/19/2010 10:56 AM, sam sokolik wrote: Last major hardware mod (except for a control panel) This is the encoder for the spindle.. This will allow for rigid tapping. Heating up the timing gear http://www.electronicsam.com/images/KandT/conversion/spindle/timinggear.JPG installed http://www.electronicsam.com/images/KandT/conversion/spindle/spindletiminggear.JPG Now just need to come up with a bracket (and a belt guide on the encoder pully) http://www.electronicsam.com/images/KandT/conversion/spindle/spindleencoder.JPG sam On 12/12/2010 09:25 PM, Jon Elson wrote: sam sokolik wrote: Thanks! the drives are what is limiting.. They are 20a continuous and 40a peak. The servos are pretty close to an amp per ft-lb. with a 2:1 belt drive - that gives us 80ft-lb peak at the screws. That is pretty close to what the old hydraulic servos. I wouldn't call 16000 Lbs linear force limiting. It sounds QUITE sufficient for such a machine. You don't expect a machine like that to be doing high speed contouring, but I suspect it can probably do anything that the available spindle speed makes practical. Jon -- Oracle to DB2 Conversion Guide: Learn learn about native support for PL/SQL, new data types, scalar functions, improved concurrency, built-in packages, OCI, SQL*Plus, data movement tools, best practices and more. http://p.sf.net/sfu/oracle-sfdev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
well - we heated it up mainly for ease of slipping it on. it almost went on by hand. it will probably come off pretty easy. sam On 12/19/2010 10:19 AM, Stuart Stevenson wrote: Sam, Sweet - nice job Now you need a socket to fit the gear teeth so you can remove that nut when (not if) is is necessary. Stuart -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
it seems to track perfectly - but time will tell. :) At some point we might actually have to *gasp* buy a pair of timing gears. ;) sam On 12/20/2010 11:51 AM, Jon Elson wrote: sam sokolik wrote: well - we are not 100% sure. We started with a similar sized pair of gears but could not find a belt that fit them. So we found this pair in our parts bin (we call 2 pole buildings and a barn our parts bin.) They are XL and we know the we can get belts. :) We think they started life as a drive for a line printer belt. where ever other tooth was a letter. That is blowing the dust off the memory wear house. We could be wrong. I THOUGHT those things looked DAMN familiar. They are gear sensor wheels from an IBM line printer. Now, maybe they saved time by taking teeth off commercial timing pulleys, but I'd check the profile carefully to make sure it is not going to prematurely wear out the belt. Jon -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Use of Pico Systems brush servo amps with Mesa 5i20 controller
the amps that I built had a boot strap that required charging.. I also never had issues with it not charging at startup. I figured there was enough dithering that everything 'just worked' tm sam On 1/13/2011 11:56 AM, Anders Wallin wrote: I believe there are a few people using the Pico Systems brush PWM servo amp with mesa controller boards. We are using this combination on our mill. I'm not using any special boot-up HAL code for the servo amp. When dry-testing the servos on the bench (no load attached), this boot-up sometimes causes the servo to spin in one direction, causing a following error. In practice with a load attached and with a tuned PID-loop there are no problems. I guess the encoder input is noisy enough, or the PID-settings are such, that the drive gets the required boot-up dir/pwm anyway, and with the load attached this never causes a following error on our mill. Anders -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
so - here is a video with it all coming together. This is a short gcode program that spots, drills, taps a hole. At this time emc pauses motion when the tool prep is happening - so I modified my ladder so it sends the tool prepared bit instantly but the actual tool change is inhibited until the ladder is done with the tool prep. (if that made sense.) The program is short enough that for a few of the tools the tool change sequence has to wait for the prep. http://www.youtube.com/watch?v=39q6kvrSBSk After this video was done we played with the spindle vfd and got the acc/dec twice as fast. sam On 01/10/2011 04:10 AM, Mark Wendt wrote: These big machines running EMC2 are just very cool! Been watching this big girl come to life since you started posting the vids. Thanks for keeping us in the loop Sam! Mark On 01/09/2011 11:30 AM, sa...@empirescreen.com wrote: That is the spindle collet unclamp. It moves forward about .05 inch. seems to not be a problem with the encoder setup. (it really was the only sane solution..) ;) sam On Sun, 09 Jan 2011 07:02:59 -0500 Mark Wendt (Contractor)mark.we...@nrl.navy.mil wrote: Pretty neat stuff Sam! What is that last operation in that video - where it looks like that big nut moving laterally? Is that part of the tool changing process? Mark At 07:40 PM 1/8/2011, you wrote: Ok - have the spindle encoder mounted. http://www.youtube.com/watch?v=5vvP4L_hr90 rigid tapping works - I will make a video soon. (having some tool prep issues. Master seems to pause everything while it is pre-fetching the tool) sam -- Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Learn how to best implement a security strategy that keeps consumers' information secure and instills the confidence they need to proceed with transactions. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Kearney and Trecker Milwaukeematic IIIb progress
It is actually a little easier than that. Each tool has a mechanical barcode. So I call the tool I want - it spins the chain until it reads the right number on the tool and puts it in the prepared location. You can see the rings on the tool (the reader is behind it) http://www.electronicsam.com/images/KandT/conversion/toolchangerspindle.JPG The tooling is something KT produces as far as I know. Strait shank held in by a collet. We have quite a bit of tooling and if we need more we would probably make it. Now - yes the 7/8 drill is bent - it was the best enco had about 15 years ago :) sam On 01/15/2011 09:45 PM, Jon Elson wrote: gene heskett wrote: Sweet Sam. Looks like the paint is being refreshed also, generally looking good except for the slightly bent 2nd drill. ;-) Since the tools are being replaced in the belt by a different tool, how does it track what tool is in which belt pocket? This is EMC2's random toolchanger scheme. EMC2 has a file where it keep track of which tool is in which pocket, and the file is updated when the tools are loaded/unloaded. Jon -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] converting Monarch 10EE
We used a dc drive to run the rotor - then used the (IIRC) existing large adjustable resistor to drop the field as you increased the speed.. (from simple rectified dc).This is still a manual lathe. I think though it would be pretty easy to use 2 dc drives - one for the rotor and one for the field. (seems easy enough to control it from hal..) Yes - the dc motor has very nice low end torque.. sam On 4/29/2013 9:48 AM, andy pugh wrote: On 29 April 2013 15:16, John Kasunich jmkasun...@fastmail.fm wrote: Discarding the DC motor will almost certainly mean a significant performance penalty. Keeping the DC motor and driving it with either a DC drive, or the existing motor-generator set, will keep the performance. Good point, I didn't think of that. There are a couple of 2hp DC drives on eBay for around the $200 mark. I didn't find any 3HP ones, though there are several Unidrive units on there, which can drive pretty much anything. -- Try New Relic Now We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] treamill motors (was converting Monarch 10EE)
Speak of the devil...? http://www.cnczone.com/forums/general_electronics_discussion/178760-poll_treadmill_motors_information_wanted.html sam On 04/30/2013 12:16 PM, Gene Heskett wrote: On Tuesday 30 April 2013 13:15:33 andy pugh did opine: On 30 April 2013 16:56, Cecil Thomas wctho...@chartertn.net wrote: These 1 1/2 to 2 hp motors develop that hp at 5000 to 6000 rpm. You will have to rethink your drive coupling system to reduce that speed down to something usable especially for threading. Which is why I fancy experimenting with this: https://plus.google.com/photos/108164504656404380542/albums/574772215574 1347649/5832689638364145858?banner=pwa Kewl Andy. What car was that headed for? Cheers, Gene -- Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with 2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Axis and infinite loops
look at the axis preview control section... http://www.linuxcnc.org/docs/2.5/html/gui/axis.html#_axis_preview_control sam On 5/22/2013 12:44 PM, Ralph Stirling wrote: I need to have an infinite while loop for an automation application, but I can't figure out how to keep Axis from hanging forever when loading the program. Turning off all the Show settings in View doesn't seem to help. I also have a problem with M66 commands. These insist on a Q timeout value. I don't want an arbitrary timeout. If my machine needs to wait an hour for the input, I want it to wait an hour. Can I restore the old functionality of M66 that did not require the Q term? Thanks, -- Ralph -- Try New Relic Now We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_may ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Try New Relic Now We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_may ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Pendant recommendations
you really want a real jog wheel..(mpg) Once you use one - you will never want anything else... (really - you do) :) sam On 06/02/2013 02:34 PM, Bruce Layne wrote: I highly recommend the JogIt! pendant. I bought four of them via a KickStarter campaign. There's a Mach version and a LinuxCNC version. They're awesome. I use the small Logitech K400 wireless keyboard and touchpad to load the program and I do everything else with the JogIt! pendant. I could use the small K400 keyboard as a wireless pendant, but it's still a lot larger than the pendant and the JogIt! pendant has dedicated keys for everything. It plugs into a USB port and is truly plug-n-play with LinuxCNC. I know this sounds like a commercial, but I have no financial interest and am just a happy customer. I have four, and I think I'm going to buy two more! http://www.kickstarter.com/projects/1651082654/jog-it-open-source-controller-pendant-for-emc2-and On 06/02/2013 03:16 PM, Dave wrote: I want to buy a pendant for use with a Bridgeport CNC mill I have converted to Linuxcnc. I think I want an MPG with axes selection, but tell me if you disagree. I don't want to make my own as I have way too much other work to do right now. I am really looking for an off the shelf hardware solution. If it requires some hal configuration, I am not worried about that. What do you guys recommend? If the pendant gets bumped, I don't want it fracture and fly apart, etc. I've look at the CNC4PC pendants and I have looked at the pendants on Ebay. How practical are USB joysticks for use as pendants on a milling machine? If you are using a USB joystick as a pendant, which model are you using?? Thanks, Dave -- Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with 2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get 100% visibility into Java/.NET code with AppDynamics Lite It's a free troubleshooting tool designed for production Get down to code-level detail for bottlenecks, with 2% overhead. Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] External brakes and 7i39?
Our Y axis has a brake. (vertical) we just have it hooked to the axis enable pins. When the drives are enabled - the brake is disabled... Seems to work great! sam On 06/09/2013 03:44 PM, John Kasunich wrote: At one time in the darks mists of history, EMC(1?) had an axis brake output for exactly this function - it would turn the brake on and off based on g-code commands. I'm not sure if it made it into EMC2 and thus LinuxCNC. If I wasn't lazy I would check the manual and see if the motion component has a brake pin. On Sun, Jun 9, 2013, at 01:34 PM, Andrew wrote: 2013/6/9 Florian Rist fr...@fs.tum.dehttps://mail.google.com/mail/u/0/?view=cmfs=1tf=1to=fr...@fs.tum.de Hi Andrew Hi Florian, It depends on when you need the brakes on. Well, the brakes are supposed to prevent the servo from moving when powered off, for safety reasons but also to be able to power up the machine without the need to home the axis (nor sure if this is really possible) The simple solution is connect brakes to enable. So I take the enable signal for the servo controller (7i39) and use that to switch on the brae supply, right? I guess so. I usually use relay modules like this http://www.ebay.com/itm/251267628031 for that purpose. Other is powering brakes when commanded velocity magnitude exceeds some near-zero value. sounds more elegant, but that means I have to use an extra i/o pin (no problem there are plenty of them free) and generate the signal for it (don't know how to do so, right now) Yes. I would use abs to get absolute value of velocity and then comp to compare it to say 0.1 or 0.01 (slow enough but not zero). http://www.linuxcnc.org/docs/html/man/man9/abs.9.html http://www.linuxcnc.org/docs/html/man/man9/comp.9.html The question is which signal to use for velocity input: axis.N.joint-vel-cmd (or probably PID outputs) for each axis with 3 independent brakes, or motion.current-vel for common brake signal. Something like this. We can continue with details if nesessary. Andrew -- How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Should I or Shouldn't I?
We have a monarch 10EE that is going to be converted to cnc... Some people cringe at that. I don't.. sam On 6/12/2013 12:05 PM, Bruce Layne wrote: On Wed, 12 Jun 2013 16:35:55 +0100 andy pugh bodge...@gmail.com wrote: Should I CNC it? It's a neat old machine, but it's not the Mona Lisa. Converting it to CNC is not some sort of crime against humanity. Follow your own sensibilities and I'm sure you'll do just fine. I think it's great that people respect old machines and want to preserve them. However, I also believe in property rights. You bought it, so it's yours. If you want to bolt some motors to it and connect it to a computer and make it do tricks the manufacturers would have never imagined, then go for it. Don't let anyone tell you that you may have bought it but you have no right to modify it and you must restore it to its original condition or you're some sort of vandal. If they want to preserve that machine, THEY should buy it and spent their money to restore it and put it in their vintage machine museum. This topic reminds me of the local historical trust. They get the local government to pass ordinances and zoning restrictions telling people who own old houses what color they're allowed to paint them, what restoration they must do and what improvements they can't make to their property, which contractors are authorized to do historical restoration, etc. They don't own the property, but they are somehow entitled to make every significant decision concerning the property. I'm stripping a lot of parts off a neat old Clausing lathe that I don't need after I convert it to CNC - cross slide, lead screws, all the complex hardware associated with threading, reversing drum switch, etc. I'll eBay that stuff for anyone who wants to restore their old Clausing lathe. As C3PO said, if any of my parts could be of use, I'll gladly donate them. I was probably a Mongol or Visigoth in a previous life. -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] What is the Wichita meeting?
usually - in my experience - the end of the week is usually the busiest.. We are driving Wednesday morning and leaving Sunday. sam On 06/12/2013 04:08 PM, tcninj...@yahoo.com wrote: My shop workload will not let me stay the whole week. So should I come for the beginning or the end?I have 3 days to spend. On Jun 12, 2013, at 12:45 PM, Jon Elson el...@pico-systems.com wrote: andy pugh wrote: On 12 June 2013 16:10, Kenneth Lerman kenneth.ler...@se-ltd.com wrote: If you are vegan, I'll buy you a carrot. :-) I'll take you up on the carrot if it is a generic offer. There's an Indian place in Wichita that is VEY good! They had a lentil soup there that I'd love to get the recipe for. I think both Jeff and Chris Radek (have to specify last name there, we have a couple Chris's) are both vegan, so you will be in good company. Jon -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wichita LinuxCNC meeting
First off - Thank you Stuart you are more than generous. Both dad and I had a wonderful time at the fest. I hope we can keep this up more often. 3 years was way too long. Now we had some success at the fest. Andy P asked if I would bring the accupins from the old GE control on the kt. http://www.electronicsam.com/images/KandT/conversion/accpinset1.jpg Well - saturday (yah we don't get side tracked - do we?) We started doing some basic tests on the read head. Andy had a frequency generator and we started injecting a signal into one of the coils. We could sort of see a shift of the return signal and goofed around with it for a bit. Jeff E was kind enough to whip up an arduino circuit that output 2 square waves 90deg out of phase. When that was hooked up to each coil - it did something. Just not what was expected. (don't remember what but not right) After reading back on my notes it dawned on me that the signal really needed to be isolated (the original circuit was driven by a push pull h-bridge) Pete W came by and said - if you have enough outputs you could generate differential signals. Duh. Back to Jeff E and 2 seconds later I had a new arduio program. That started looking promising. Chris R came over and was poking at the scope. We could see it shifting as the scale was moved - but the amplitude also changed. We must have went around in circles for a while before we decided to change the arduio frequancy from 10khz to the 250hz that the original control used. (I got stuck on 10khz because that was what seemed to go through the coil with Andy frequency generator). I hooked up the circuit and Chris fiddles with the scope. He exclaimed - 'I think it is working!' and he was right.' http://www.youtube.com/watch?v=im79QbffjCQ with a bit of filter http://www.youtube.com/watch?v=x6hzesMM7EM this is why it looked a bit noisy... :) http://www.electronicsam.com/images/KandT/Fest2013/DSC_3931.JPG After a bit of happy dancing - Andy and Jeff started looking at the signal. I got sidetracked again and didn't really pay attenion to what they where discussing. What they decided was that they could also read the output with an arduino.. A bit later - Jeff shows up with a way to log the output. he goofed around with it and graphed some of the data and it looks very exciting. Thanks again for everyones input! sam On 06/24/2013 08:48 AM, Stuart Stevenson wrote: Gentlemen, First response - WOW - the only word to describe the week. Over thirty people attended this week. When I posted the meeting time and place I thought eight might show up and twelve would be a large number. I was surprised! Many states were represented as were Canada, UK and Austria. What a joy to meet and get to know everyone. Cool stuff: 3D printing Web page (and Android) control Watching techs with scopes ferreting out signals from electronic devices Programmers trying software control experiments Discussion about software/hardware timing and protocol. Meetings about changes in software and hardware. This was overwhelming on a daily basis! From groups of two or three around the room to a couple complete group gatherings an air of expectation was exhibited by excited voices and arm waving descriptions. It was difficult to stay listening to one group while overhearing another. Which do I want to concentrate on? I know I missed a lot of information I would have loved to have heard. I can now put a face and voice to many of the names on the communication channels. Last night I was hearing their voices and seeing their faces while I was reading some of their emails. What a communication enhancer. Last response is WOW! Thank everyone for attending and making this a memorable and productive meeting! Stuart -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wichita LinuxCNC meeting
I forgot to post these.. (Thanks dad!) http://www.electronicsam.com/images/KandT/Fest2013/ random pictures from the fest. I hope to organize them in the future. sam On 06/25/2013 03:38 PM, Peter C. Wallace wrote: On Mon, 24 Jun 2013, sam sokolik wrote: Date: Mon, 24 Jun 2013 22:09:11 -0500 From: sam sokolik sa...@empirescreen.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Wichita LinuxCNC meeting First off - Thank you Stuart you are more than generous. Both dad and I had a wonderful time at the fest. I hope we can keep this up more often. 3 years was way too long. Let me echo that. Stuart was a wonderful host and it was great to finally get to meet people I have cooresponded with for years. Peter Wallace Mesa Electronics -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] emco compact 5pc lathe and linuxcnc
We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option of the printer port that allows for a cycle within each base period the same feature that makes 'double step' work. This allows me to 'latch' the 74ls374 each base period with the current step/dir pattern. It seems to work Now it took me a bit of tinkering to figure out that I didn't read the above article well enough to notice that you needed to set a switch to put the emco interface board into step/dir mode. During this time I was flipping bits on the printer port to try to figure out why it wasn't working. I think by default the interface is setup as phase drive. (4 phases per stepper) as I think I was flipping all 8 data bits on the printer port and was getting stepper clunking. Well - the performace of these drives/steppers are pretty poor. (assuming I have the timing right - and I didn't get too much time to play with it.) In the above article they talk about around 20ipm is about max. That is what I was seeing - plus there is a weird interaction when you run both axis at once. (they get quite a bit noisier for some reason). Now it could be that I don't quite have the timing correct - like maybe the step/dir needs to be inverted or or something - I will play with it more. I would also like to switch it back to non-step/dir mode. (phase drive maybe?) because there might be a reason the original software used it.. (better performance?) plus I think I have the original software and would like to try it out also. (need to setup a pure dos machine to test) lathe http://www.electronicsam.com/images/emco/emcoclose.JPG interface/drive http://www.electronicsam.com/images/emco/interfaceanddrive.JPG sam -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control)
ok - some cool news I think. So - with the switch on the interface board set to off (non step/dir mode) the control signals are 4 phase drive. (seems to be unipolar). pins 2 through 5 control one axis - 6 through 9 control the other. I hacked a hal file to setup stepgen to output 4 phase (patterns 5 through 10). First tried pattern 9 (Unipolar Half Step) because the scale was setup for that. the performance was the same. 20ipm max and would probably have to back that off... Second was pattern 10 (Bipolar Half Step) I know - not likely - and it wasn't. Didn't like it. Third was pattern 5 (Unipolar Full Step) I halved the axis scales also. similar performance.. 20ipm max. (and sound so far was pretty crappy) fourth was pattern 6 (Unipolar Full Step (two windings on)) Holy crap. That sounds nice. maxed out at 30ipm and didn't try any faster. Full stepping is .00054ish per step. Workable for sure. That is what the original control/software maxed out at. I will try faster when I get a chance. That is totally usable with linuxcnc - no mods to the control. I need to hook up the index and 100ppr and try some threading! One thing to try is - I think I can put the interface board back into step/dir and full step. I don't know what pattern it does though. sam (happy dancing..) On 7/8/2013 7:13 AM, sam sokolik wrote: We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option of the printer port that allows for a cycle within each base period the same feature that makes 'double step' work. This allows me to 'latch' the 74ls374 each base period with the current step/dir pattern. It seems to work Now it took me a bit of tinkering to figure out that I didn't read the above article well enough to notice that you needed to set a switch to put the emco interface board into step/dir mode. During this time I was flipping bits on the printer port to try to figure out why it wasn't working. I think by default the interface is setup as phase drive. (4 phases per stepper) as I think I was flipping all 8 data bits on the printer port and was getting stepper clunking. Well - the performace of these drives/steppers are pretty poor. (assuming I have the timing right - and I didn't get too much time to play with it.) In the above article they talk about around 20ipm is about max. That is what I was seeing - plus there is a weird interaction when you run both axis at once. (they get quite a bit noisier for some reason). Now it could be that I don't quite have the timing correct - like maybe the step/dir needs to be inverted or or something - I will play with it more. I would also like to switch it back to non-step/dir mode. (phase drive maybe?) because there might be a reason the original software used it.. (better performance?) plus I think I have the original software and would like to try it out also. (need to setup a pure dos machine to test) lathe http://www.electronicsam.com/images/emco/emcoclose.JPG interface/drive http://www.electronicsam.com/images/emco/interfaceanddrive.JPG sam -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Stupid LinuxCNC Tricks
This person https://www.youtube.com/watch?v=5MOSnFSx8JQlist=PLX82OaCkLR_TE00_oS2Wn3gGF5G-Zar6S has kins here http://kvarc.extra.hu/step/motor/emc/emckinematics.html sam On 7/10/2013 2:08 PM, Charles Steinkuehler wrote: On 7/10/2013 1:28 PM, Eric Keller wrote: On Tue, Oct 23, 2012 at 11:38 PM, Charles Steinkuehler char...@steinkuehler.net wrote: The ultimate goal of all this is to make a delta-arm 3D printer and use kinematics in LinuxCNC for the tricky math bits that are hard to do on the AVR micro-controllers most 3D printers use for control. Now that I know more about delta robots, I was curious if anyone had seen code for the kinematics for a linear delta robot? I have articles about it, but would rather not code it up from scratch if I don't have to do that. There is a topic on the Lcnc forum about this, but the question remains unanswered. Code is here: https://github.com/jcrocholl/Marlin ...and from what I can tell (I'm not real familiar with the Marlin codebase) the actual kinematics are in this file: https://github.com/jcrocholl/Marlin/blob/deltabot/Marlin/motion_control.cpp Note that one linear gcode move is converted into lots of little tiny steps, which are then converted to joint positions. I'm not sure how applicable the code would be for LinuxCNC. For LinuxCNC, I would start with the tripod kinematics module. A delta bot is very similar math, you're just moving the end of the joint in a delta bot vs. changing the joint length in the existing tripod kins. I blame Charles for my new-found obsession with delta robots. Hey...I brought a plain old Cartesian printer to Wichita! It's not my fault you go wandering around the internet clicking on YouTube videos! :) -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control)
Seems to run nice at 40ipm http://electronicsam.com/images/emco/EMCOThreading.JPG video soon... On 7/9/2013 11:34 AM, sam sokolik wrote: ok - some cool news I think. So - with the switch on the interface board set to off (non step/dir mode) the control signals are 4 phase drive. (seems to be unipolar). pins 2 through 5 control one axis - 6 through 9 control the other. I hacked a hal file to setup stepgen to output 4 phase (patterns 5 through 10). First tried pattern 9 (Unipolar Half Step) because the scale was setup for that. the performance was the same. 20ipm max and would probably have to back that off... Second was pattern 10 (Bipolar Half Step) I know - not likely - and it wasn't. Didn't like it. Third was pattern 5 (Unipolar Full Step) I halved the axis scales also. similar performance.. 20ipm max. (and sound so far was pretty crappy) fourth was pattern 6 (Unipolar Full Step (two windings on)) Holy crap. That sounds nice. maxed out at 30ipm and didn't try any faster. Full stepping is .00054ish per step. Workable for sure. That is what the original control/software maxed out at. I will try faster when I get a chance. That is totally usable with linuxcnc - no mods to the control. I need to hook up the index and 100ppr and try some threading! One thing to try is - I think I can put the interface board back into step/dir and full step. I don't know what pattern it does though. sam (happy dancing..) On 7/8/2013 7:13 AM, sam sokolik wrote: We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option of the printer port that allows for a cycle within each base period the same feature that makes 'double step' work. This allows me to 'latch' the 74ls374 each base period with the current step/dir pattern. It seems to work Now it took me a bit of tinkering to figure out that I didn't read the above article well enough to notice that you needed to set a switch to put the emco interface board into step/dir mode. During this time I was flipping bits on the printer port to try to figure out why it wasn't working. I think by default the interface is setup as phase drive. (4 phases per stepper) as I think I was flipping all 8 data bits on the printer port and was getting stepper clunking. Well - the performace of these drives/steppers are pretty poor. (assuming I have the timing right - and I didn't get too much time to play with it.) In the above article they talk about around 20ipm is about max. That is what I was seeing - plus there is a weird interaction when you run both axis at once. (they get quite a bit noisier for some reason). Now it could be that I don't quite have the timing correct - like maybe the step/dir needs to be inverted or or something - I will play with it more. I would also like to switch it back to non-step/dir mode. (phase drive maybe?) because there might be a reason the original software used it.. (better performance?) plus I think I have the original software and would like to try it out also. (need to setup a pure dos machine to test) lathe http://www.electronicsam.com/images/emco/emcoclose.JPG interface/drive http://www.electronicsam.com/images/emco/interfaceanddrive.JPG sam -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control)
quick threading video.. (yes - not the correct cutter - and the exit move is a bit shallow.. but shows the spindle sync is right on...) https://www.youtube.com/watch?v=ERMizV-yy8U sam On 07/11/2013 02:56 PM, sam sokolik wrote: Seems to run nice at 40ipm http://electronicsam.com/images/emco/EMCOThreading.JPG video soon... On 7/9/2013 11:34 AM, sam sokolik wrote: ok - some cool news I think. So - with the switch on the interface board set to off (non step/dir mode) the control signals are 4 phase drive. (seems to be unipolar). pins 2 through 5 control one axis - 6 through 9 control the other. I hacked a hal file to setup stepgen to output 4 phase (patterns 5 through 10). First tried pattern 9 (Unipolar Half Step) because the scale was setup for that. the performance was the same. 20ipm max and would probably have to back that off... Second was pattern 10 (Bipolar Half Step) I know - not likely - and it wasn't. Didn't like it. Third was pattern 5 (Unipolar Full Step) I halved the axis scales also. similar performance.. 20ipm max. (and sound so far was pretty crappy) fourth was pattern 6 (Unipolar Full Step (two windings on)) Holy crap. That sounds nice. maxed out at 30ipm and didn't try any faster. Full stepping is .00054ish per step. Workable for sure. That is what the original control/software maxed out at. I will try faster when I get a chance. That is totally usable with linuxcnc - no mods to the control. I need to hook up the index and 100ppr and try some threading! One thing to try is - I think I can put the interface board back into step/dir and full step. I don't know what pattern it does though. sam (happy dancing..) On 7/8/2013 7:13 AM, sam sokolik wrote: We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option of the printer port that allows for a cycle within each base period the same feature that makes 'double step' work. This allows me to 'latch' the 74ls374 each base period with the current step/dir pattern. It seems to work Now it took me a bit of tinkering to figure out that I didn't read the above article well enough to notice that you needed to set a switch to put the emco interface board into step/dir mode. During this time I was flipping bits on the printer port to try to figure out why it wasn't working. I think by default the interface is setup as phase drive. (4 phases per stepper) as I think I was flipping all 8 data bits on the printer port and was getting stepper clunking. Well - the performace of these drives/steppers are pretty poor. (assuming I have the timing right - and I didn't get too much time to play with it.) In the above article they talk about around 20ipm is about max. That is what I was seeing - plus there is a weird interaction when you run both axis at once. (they get quite a bit noisier for some reason). Now it could be that I don't quite have the timing correct - like maybe the step/dir needs to be inverted or or something - I will play with it more. I would also like to switch it back to non-step/dir mode. (phase drive maybe?) because there might be a reason the original software used it.. (better performance?) plus I think I have the original software and would like to try it out also. (need to setup a pure dos machine to test) lathe http://www.electronicsam.com/images/emco/emcoclose.JPG interface/drive http://www.electronicsam.com/images/emco/interfaceanddrive.JPG sam -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control)
one more.. https://www.youtube.com/watch?v=_7skJhKzU7Y Dad is having too much fun... sam On 07/11/2013 08:43 PM, sam sokolik wrote: quick threading video.. (yes - not the correct cutter - and the exit move is a bit shallow.. but shows the spindle sync is right on...) https://www.youtube.com/watch?v=ERMizV-yy8U sam On 07/11/2013 02:56 PM, sam sokolik wrote: Seems to run nice at 40ipm http://electronicsam.com/images/emco/EMCOThreading.JPG video soon... On 7/9/2013 11:34 AM, sam sokolik wrote: ok - some cool news I think. So - with the switch on the interface board set to off (non step/dir mode) the control signals are 4 phase drive. (seems to be unipolar). pins 2 through 5 control one axis - 6 through 9 control the other. I hacked a hal file to setup stepgen to output 4 phase (patterns 5 through 10). First tried pattern 9 (Unipolar Half Step) because the scale was setup for that. the performance was the same. 20ipm max and would probably have to back that off... Second was pattern 10 (Bipolar Half Step) I know - not likely - and it wasn't. Didn't like it. Third was pattern 5 (Unipolar Full Step) I halved the axis scales also. similar performance.. 20ipm max. (and sound so far was pretty crappy) fourth was pattern 6 (Unipolar Full Step (two windings on)) Holy crap. That sounds nice. maxed out at 30ipm and didn't try any faster. Full stepping is .00054ish per step. Workable for sure. That is what the original control/software maxed out at. I will try faster when I get a chance. That is totally usable with linuxcnc - no mods to the control. I need to hook up the index and 100ppr and try some threading! One thing to try is - I think I can put the interface board back into step/dir and full step. I don't know what pattern it does though. sam (happy dancing..) On 7/8/2013 7:13 AM, sam sokolik wrote: We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option of the printer port that allows for a cycle within each base period the same feature that makes 'double step' work. This allows me to 'latch' the 74ls374 each base period with the current step/dir pattern. It seems to work Now it took me a bit of tinkering to figure out that I didn't read the above article well enough to notice that you needed to set a switch to put the emco interface board into step/dir mode. During this time I was flipping bits on the printer port to try to figure out why it wasn't working. I think by default the interface is setup as phase drive. (4 phases per stepper) as I think I was flipping all 8 data bits on the printer port and was getting stepper clunking. Well - the performace of these drives/steppers are pretty poor. (assuming I have the timing right - and I didn't get too much time to play with it.) In the above article they talk about around 20ipm is about max. That is what I was seeing - plus there is a weird interaction when you run both axis at once. (they get quite a bit noisier for some reason). Now it could be that I don't quite have the timing correct - like maybe the step/dir needs to be inverted or or something - I will play with it more. I would also like to switch it back to non-step/dir mode. (phase drive maybe?) because there might be a reason the original software used it.. (better performance?) plus I think I have the original software and would like to try it out also. (need to setup a pure dos machine to test) lathe http://www.electronicsam.com/images/emco/emcoclose.JPG interface/drive http://www.electronicsam.com/images/emco/interfaceanddrive.JPG sam -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control)
one last - I swear.. ;) https://www.youtube.com/watch?v=Z_LxyosF2yc sam On 7/15/2013 5:42 PM, sam sokolik wrote: one more.. https://www.youtube.com/watch?v=_7skJhKzU7Y Dad is having too much fun... sam On 07/11/2013 08:43 PM, sam sokolik wrote: quick threading video.. (yes - not the correct cutter - and the exit move is a bit shallow.. but shows the spindle sync is right on...) https://www.youtube.com/watch?v=ERMizV-yy8U sam On 07/11/2013 02:56 PM, sam sokolik wrote: Seems to run nice at 40ipm http://electronicsam.com/images/emco/EMCOThreading.JPG video soon... On 7/9/2013 11:34 AM, sam sokolik wrote: ok - some cool news I think. So - with the switch on the interface board set to off (non step/dir mode) the control signals are 4 phase drive. (seems to be unipolar). pins 2 through 5 control one axis - 6 through 9 control the other. I hacked a hal file to setup stepgen to output 4 phase (patterns 5 through 10). First tried pattern 9 (Unipolar Half Step) because the scale was setup for that. the performance was the same. 20ipm max and would probably have to back that off... Second was pattern 10 (Bipolar Half Step) I know - not likely - and it wasn't. Didn't like it. Third was pattern 5 (Unipolar Full Step) I halved the axis scales also. similar performance.. 20ipm max. (and sound so far was pretty crappy) fourth was pattern 6 (Unipolar Full Step (two windings on)) Holy crap. That sounds nice. maxed out at 30ipm and didn't try any faster. Full stepping is .00054ish per step. Workable for sure. That is what the original control/software maxed out at. I will try faster when I get a chance. That is totally usable with linuxcnc - no mods to the control. I need to hook up the index and 100ppr and try some threading! One thing to try is - I think I can put the interface board back into step/dir and full step. I don't know what pattern it does though. sam (happy dancing..) On 7/8/2013 7:13 AM, sam sokolik wrote: We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option of the printer port that allows for a cycle within each base period the same feature that makes 'double step' work. This allows me to 'latch' the 74ls374 each base period with the current step/dir pattern. It seems to work Now it took me a bit of tinkering to figure out that I didn't read the above article well enough to notice that you needed to set a switch to put the emco interface board into step/dir mode. During this time I was flipping bits on the printer port to try to figure out why it wasn't working. I think by default the interface is setup as phase drive. (4 phases per stepper) as I think I was flipping all 8 data bits on the printer port and was getting stepper clunking. Well - the performace of these drives/steppers are pretty poor. (assuming I have the timing right - and I didn't get too much time to play with it.) In the above article they talk about around 20ipm is about max. That is what I was seeing - plus there is a weird interaction when you run both axis at once. (they get quite a bit noisier for some reason). Now it could be that I don't quite have the timing correct - like maybe the step/dir needs to be inverted or or something - I will play with it more. I would also like to switch it back to non-step/dir mode. (phase drive maybe?) because there might be a reason the original software used it.. (better performance?) plus I think I have the original software and would like to try it out also. (need to setup a pure dos machine to test) lathe http://www.electronicsam.com/images/emco/emcoclose.JPG interface/drive http://www.electronicsam.com/images/emco/interfaceanddrive.JPG sam -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome)
So - as far as I can tell - the original control did 1/2 stepping up to about 19ipm - then full stepping from there to 30ipm. Now the lathe runs fine on full stepping from 0 to 40 (maybe 45)ipm. Half stepping only works well up to 20ipm-ish. (stalls above that) But why stop there.. I started thinking about if linuxcnc could do that (without coding anything) A couple advantages of halfstepping.. 1 higher resolution 0.000273403/step vs 0.000546806 per step 2 reduced resonance.. (I have not run into this with full stepping on the lathe) Then at normal cutting speeds - 16ipm you get a higher resolution. So why not have 2 stepgens running. One that half steps (type 9) with input scale of 3657.6073152 and the other full stepping (type 6) with a scale of 1828.8036576 (lathe calculation - metric screws) Then switch between the two stepgens at a specific feed (I picked 16ipm with a hysteresis of 1ipm) All I can say is - HAL IS AWESOME I setup a Lut5 with Jeff E's help (thanks jeff!) that switches the printer port between the 2 stepgens. A offset componant was used between the 2 stepgens to better align the phasing. (not tweeked 100% yet) but we jogged it around - could not tell that it was switching between the 2 stepgens and it always came back to 0. there is a bit more than that.. (ddt for calculating the axis velocity, abs of that, comp w/hystorisis, and stuff I have forgotten already.) And here is a halscope capture. Left side is halfstepping - right side is full stepping. The trigger is the velocity threshold. http://www.electronicsam.com/images/emco/Screenshot.png I think the offset could be tweaked more scientifically to maybe get rid of the blip. But as it is running the 4 phases directly - it didn't seem to effect the motion. here is the initial configs. http://www.electronicsam.com/images/emco/linuxcnc_configs/full-half_step_test/ again - jmk and everyone that has worked on hal - Very very awesome work! sam On 07/18/2013 06:55 AM, sam sokolik wrote: one last - I swear.. ;) https://www.youtube.com/watch?v=Z_LxyosF2yc sam On 7/15/2013 5:42 PM, sam sokolik wrote: one more.. https://www.youtube.com/watch?v=_7skJhKzU7Y Dad is having too much fun... sam On 07/11/2013 08:43 PM, sam sokolik wrote: quick threading video.. (yes - not the correct cutter - and the exit move is a bit shallow.. but shows the spindle sync is right on...) https://www.youtube.com/watch?v=ERMizV-yy8U sam On 07/11/2013 02:56 PM, sam sokolik wrote: Seems to run nice at 40ipm http://electronicsam.com/images/emco/EMCOThreading.JPG video soon... On 7/9/2013 11:34 AM, sam sokolik wrote: ok - some cool news I think. So - with the switch on the interface board set to off (non step/dir mode) the control signals are 4 phase drive. (seems to be unipolar). pins 2 through 5 control one axis - 6 through 9 control the other. I hacked a hal file to setup stepgen to output 4 phase (patterns 5 through 10). First tried pattern 9 (Unipolar Half Step) because the scale was setup for that. the performance was the same. 20ipm max and would probably have to back that off... Second was pattern 10 (Bipolar Half Step) I know - not likely - and it wasn't. Didn't like it. Third was pattern 5 (Unipolar Full Step) I halved the axis scales also. similar performance.. 20ipm max. (and sound so far was pretty crappy) fourth was pattern 6 (Unipolar Full Step (two windings on)) Holy crap. That sounds nice. maxed out at 30ipm and didn't try any faster. Full stepping is .00054ish per step. Workable for sure. That is what the original control/software maxed out at. I will try faster when I get a chance. That is totally usable with linuxcnc - no mods to the control. I need to hook up the index and 100ppr and try some threading! One thing to try is - I think I can put the interface board back into step/dir and full step. I don't know what pattern it does though. sam (happy dancing..) On 7/8/2013 7:13 AM, sam sokolik wrote: We got a few of these lathes from a local school. they are cute little cnc lathes. The technology is pretty old though. The steppers are 72 steps per rev. I found this http://www.maxton.com/ebay/emco/EMCO%20Compact%205PC%20Conversion%20to%20Mach3.pdf which talks about converting to mach. They remove the octal latch and jump through it. I wanted to see if I could get linuxcnc to drive the board without hacking the latch out. this is what I have found/figured out I think this is correct.. (this is with switch 1 on the interface board set to 'on' which puts the board into step/dir) x step pin 2 x dir pin 3 z step pin 4 z dir pin 5 index pin 12 estop pin 11 100 ppr sensor pin 10 74ls374 enable pin 14 74ls374 clock pin 1 I setup linuxcnc to send a pulse at every base period for the 'clock' that latched the outputs of the chip. (thanks Jeff E for the idea) this is using the 'reset' option
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome)
A little tweaking - better alignment I think. (not that it was causing issues - so far so good) http://www.electronicsam.com/images/emco/betterstep.png left side half step - right side full step. (triggered by a velocity threshold.. - xswitch) On 7/18/2013 4:49 PM, Marcus Bowman wrote: On 18 Jul 2013, at 22:15, sam sokolik wrote: So - as far as I can tell - the original control did 1/2 stepping up to about 19ipm - then full stepping from there to 30ipm. Now the lathe runs fine on full stepping from 0 to 40 (maybe 45)ipm. Half stepping only works well up to 20ipm-ish. (stalls above that) But why stop there.. I started thinking about if linuxcnc could do that (without coding anything) A couple advantages of halfstepping.. 1 higher resolution 0.000273403/step vs 0.000546806 per step 2 reduced resonance.. (I have not run into this with full stepping on the lathe) Then at normal cutting speeds - 16ipm you get a higher resolution. So why not have 2 stepgens running. One that half steps (type 9) with input scale of 3657.6073152 and the other full stepping (type 6) with a scale of 1828.8036576 (lathe calculation - metric screws) Then switch between the two stepgens at a specific feed (I picked 16ipm with a hysteresis of 1ipm) Nice. That's pretty much what the Gecko drives do when they morph, I think. Works well. http://www.geckodrive.com/support/application-notes/step-drives/how-morphing-works.html But your method is simpler and much cheaper. Marcus All I can say is - HAL IS AWESOME I setup a Lut5 with Jeff E's help (thanks jeff!) that switches the printer port between the 2 stepgens. A offset componant was used between the 2 stepgens to better align the phasing. (not tweeked 100% yet) but we jogged it around - could not tell that it was switching between the 2 stepgens and it always came back to 0. there is a bit more than that.. (ddt for calculating the axis velocity, abs of that, comp w/hystorisis, and stuff I have forgotten already.) And here is a halscope capture. Left side is halfstepping - right side is full stepping. The trigger is the velocity threshold. http://www.electronicsam.com/images/emco/Screenshot.png I think the offset could be tweaked more scientifically to maybe get rid of the blip. But as it is running the 4 phases directly - it didn't seem to effect the motion. here is the initial configs. http://www.electronicsam.com/images/emco/linuxcnc_configs/full-half_step_test/ again - jmk and everyone that has worked on hal - Very very awesome work! sam -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome)
One more - de-accelerating... http://electronicsam.com/images/emco/betterstep_de-accelerating.png (full step on left - half step on right) On 7/19/2013 8:34 AM, sam sokolik wrote: A little tweaking - better alignment I think. (not that it was causing issues - so far so good) http://www.electronicsam.com/images/emco/betterstep.png left side half step - right side full step. (triggered by a velocity threshold.. - xswitch) On 7/18/2013 4:49 PM, Marcus Bowman wrote: On 18 Jul 2013, at 22:15, sam sokolik wrote: So - as far as I can tell - the original control did 1/2 stepping up to about 19ipm - then full stepping from there to 30ipm. Now the lathe runs fine on full stepping from 0 to 40 (maybe 45)ipm. Half stepping only works well up to 20ipm-ish. (stalls above that) But why stop there.. I started thinking about if linuxcnc could do that (without coding anything) A couple advantages of halfstepping.. 1 higher resolution 0.000273403/step vs 0.000546806 per step 2 reduced resonance.. (I have not run into this with full stepping on the lathe) Then at normal cutting speeds - 16ipm you get a higher resolution. So why not have 2 stepgens running. One that half steps (type 9) with input scale of 3657.6073152 and the other full stepping (type 6) with a scale of 1828.8036576 (lathe calculation - metric screws) Then switch between the two stepgens at a specific feed (I picked 16ipm with a hysteresis of 1ipm) Nice. That's pretty much what the Gecko drives do when they morph, I think. Works well. http://www.geckodrive.com/support/application-notes/step-drives/how-morphing-works.html But your method is simpler and much cheaper. Marcus All I can say is - HAL IS AWESOME I setup a Lut5 with Jeff E's help (thanks jeff!) that switches the printer port between the 2 stepgens. A offset componant was used between the 2 stepgens to better align the phasing. (not tweeked 100% yet) but we jogged it around - could not tell that it was switching between the 2 stepgens and it always came back to 0. there is a bit more than that.. (ddt for calculating the axis velocity, abs of that, comp w/hystorisis, and stuff I have forgotten already.) And here is a halscope capture. Left side is halfstepping - right side is full stepping. The trigger is the velocity threshold. http://www.electronicsam.com/images/emco/Screenshot.png I think the offset could be tweaked more scientifically to maybe get rid of the blip. But as it is running the 4 phases directly - it didn't seem to effect the motion. here is the initial configs. http://www.electronicsam.com/images/emco/linuxcnc_configs/full-half_step_test/ again - jmk and everyone that has worked on hal - Very very awesome work! sam -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome)
No problem.. When we got these - It took a couple of days to figure out what the old pc software did (between actual circuit tracing and the internet) I don't know how many of the compact 5pc lathes are still out there - unmolested... but this really does allow them to try linuxcnc without any changes to the lathe at all. (I think that is quite cool!) this is what linuxcnc outputs (this is just showing full wave) the latch is what makes the 74ls374 work in the emco interface. http://www.electronicsam.com/images/emco/Waveform.svg sam On 07/19/2013 09:48 AM, John Alexander Stewart wrote: Sam - well done. Thanks for posting here, and on the homeshopmachinist.net bbs (and wherever else you are posting) I've got an Emco Compact-8 to CNC-ize this winter - have everything except for the ball screws, so seeing your Compact-5, with the old electronics/steppers working away is really nice to see. I also have a contact with a Compact-5 CNC lathe kicking around; have to see if they are willing to part with it, so that I have yet another project! JohnS. -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] LinuxCNC 2.5.2 is released!
I think you need brackets around the expression... http://www.linuxcnc.org/docs/2.5/html/gcode/overview.html#sec:Expressions So it would be #_RR=[#_DD/2] On 07/21/2013 09:57 AM, charles green wrote: #_DD=1 #_RR=#_DD/2 lcnc v2.5.0 generates error bad character / used around whatever line #_DD=1 #_RR=#_DD*.5 generates error bad character * used around whatever line removing the '*/' line altogether from a longer program grenerates bad character + used on whatever line containing the next expression. i thought math was allowed? what am i missing? i typed everything key by key into gedit, so it's not that sort of problem. On Mon, 3/4/13, W. Martinjak mats...@play-pla.net wrote: Subject: Re: [Emc-users] LinuxCNC 2.5.2 is released! To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Date: Monday, March 4, 2013, 4:19 PM I've updated my Cheesemill and it still works flawlessly. Thanks! Great work! On 2013-03-04 17:07, Chris Radek wrote: No config changes are required when upgrading from 2.5.x to 2.5.2. For the typical installation, the update manager will automatically offer you this upgrade. Otherwise, you can get the packages from http://linuxcnc.org/dists If you're upgrading from a 2.4 release, please see http://wiki.linuxcnc.org/cgi-bin/wiki.pl?UpdatingTo2.5 Many thanks to the people who have reported bugs, and especially to the folks who worked to improve LinuxCNC for this release: Anders Wallin Andy Pugh Chris Morley Chris Radek Dewey Garrett Francis Tisserant Jeff Epler John Thornton Jon Elson Lisandro Massera Matt Shaver Michael Haberler Sascha Ittner Sebastian Kuzminsky Victor Rocco This release contains the following changes: * AXIS: Allow the setting of the top end of the Max Velocity slider according to [DISPLAY]MAX_LINEAR_VELOCITY as the docs say * Components: Fix mux16's debounce function * Components: LCD character display driver * Components: New multiclick component detects single, double, triple clicks * Docs: Many improvements * Gremlin: Better error reporting for gcode errors * Gremlin: Fix rotated axes display * Halui: Include tool length offsets in relative position outputs * Hostmot2: Fixes to sserial * Kins: Fix teleop jogging of ABC axes in the negative direction * Modbus: Fix TCP communication time out error * New config: Gecko G540 * New config: Smithy 1240combined_mm * PID: Optional new error-previous-target mode to reduce ferrors detected by motion. This is especially useful for torque-mode loops and those tunings that use large I gains * pncconf: Many fixes * PPMC: Better error checking for hardware problems causing miscommunication * Tool Table: Many fixes to tool table handling, making tool tables on nonrandom setups using mismatched tool and pocket numbers work correctly * Translations: German for tooledit * Translations: Many improvements to French * Utilities: new latencyhistogram program that shows details about latency * Utilities: sim_pin, a script that simulates writing to hal pins -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- In der Wissenschaft siegt nie eine neue Theorie, nur ihre Gegner sterben nach und nach Max Planck -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list
[Emc-users] New machine - Servo drive questions
We just got an acroloc which has a general numerics control. It is using siemens drives. 6sc6120-0fe00 The servo drive uses what looks like 3 of similar circuit boards. http://imagebin.org/index.php?mode=imageid=265521 wondering if anyone has any info on these drives.. servos.. http://imagebin.org/index.php?mode=imageid=265484 Spindle motor http://imagebin.org/index.php?mode=imageid=265571 thanks sam -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] New machine - Servo drive questions
I meant - the spindle drive looks like it uses 3 similar cards. (hooked togather with ribbon cable..) It is the 3 cards in the center of the rack. On 7/25/2013 10:28 AM, sam sokolik wrote: We just got an acroloc which has a general numerics control. It is using siemens drives. 6sc6120-0fe00 The servo drive uses what looks like 3 of similar circuit boards. http://imagebin.org/index.php?mode=imageid=265521 wondering if anyone has any info on these drives.. servos.. http://imagebin.org/index.php?mode=imageid=265484 Spindle motor http://imagebin.org/index.php?mode=imageid=265571 thanks sam -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] New machine - Servo drive questions
Thanks.. I was getting closer - I kept finding references to 611.. A quick scan seems like they may be useable.. sam On 7/26/2013 12:16 AM, Martin Kuhnle wrote: Hi Sam, search for Siemens Simodrive 610. There is a lot of information available. http://cache.automation.siemens.com/dnl/TUyNTc2NjMA_21910882_HB/588_6SC61%20Description.pdf Am 25.07.2013 18:24, schrieb sam sokolik: I meant - the spindle drive looks like it uses 3 similar cards. (hooked togather with ribbon cable..) It is the 3 cards in the center of the rack. On 7/25/2013 10:28 AM, sam sokolik wrote: We just got an acroloc which has a general numerics control. It is using siemens drives. 6sc6120-0fe00 The servo drive uses what looks like 3 of similar circuit boards. http://imagebin.org/index.php?mode=imageid=265521 wondering if anyone has any info on these drives.. servos.. http://imagebin.org/index.php?mode=imageid=265484 Spindle motor http://imagebin.org/index.php?mode=imageid=265571 thanks sam -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome)
Fun with linuxcnc... I stole the program from jmk here http://jmkasunich.dyndns.org/cgi-bin/blosxom/shoptask/fusee-1.html Variable pitch/diameter threading... http://electronicsam.com/images/emco/fusee3.JPG sam On 7/20/2013 10:21 AM, sam sokolik wrote: No problem.. When we got these - It took a couple of days to figure out what the old pc software did (between actual circuit tracing and the internet) I don't know how many of the compact 5pc lathes are still out there - unmolested... but this really does allow them to try linuxcnc without any changes to the lathe at all. (I think that is quite cool!) this is what linuxcnc outputs (this is just showing full wave) the latch is what makes the 74ls374 work in the emco interface. http://www.electronicsam.com/images/emco/Waveform.svg sam On 07/19/2013 09:48 AM, John Alexander Stewart wrote: Sam - well done. Thanks for posting here, and on the homeshopmachinist.net bbs (and wherever else you are posting) I've got an Emco Compact-8 to CNC-ize this winter - have everything except for the ball screws, so seeing your Compact-5, with the old electronics/steppers working away is really nice to see. I also have a contact with a Compact-5 CNC lathe kicking around; have to see if they are willing to part with it, so that I have yet another project! JohnS. -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome)
I will keep putting them here.. http://www.electronicsam.com/images/emco/linuxcnc_configs/ The full step ver 2 has spindle rpm.. I have not added spindle speed to the full/halfstep morping config yet. (just some copy and paste with a xml and postgui hal file.) sam On 08/05/2013 03:27 PM, Belli Button wrote: Hi Sam, Did you post your newest .hal and .ini? -Original Message- From: sam sokolik [mailto:sa...@empirescreen.com] Sent: 05 August 2013 04:13 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] emco compact 5pc lathe and linuxcnc (no mods to original control) (Now - hal is awesome) Fun with linuxcnc... I stole the program from jmk here http://jmkasunich.dyndns.org/cgi-bin/blosxom/shoptask/fusee-1.html Variable pitch/diameter threading... http://electronicsam.com/images/emco/fusee3.JPG sam On 7/20/2013 10:21 AM, sam sokolik wrote: No problem.. When we got these - It took a couple of days to figure out what the old pc software did (between actual circuit tracing and the internet) I don't know how many of the compact 5pc lathes are still out there - unmolested... but this really does allow them to try linuxcnc without any changes to the lathe at all. (I think that is quite cool!) this is what linuxcnc outputs (this is just showing full wave) the latch is what makes the 74ls374 work in the emco interface. http://www.electronicsam.com/images/emco/Waveform.svg sam On 07/19/2013 09:48 AM, John Alexander Stewart wrote: Sam - well done. Thanks for posting here, and on the homeshopmachinist.net bbs (and wherever else you are posting) I've got an Emco Compact-8 to CNC-ize this winter - have everything except for the ball screws, so seeing your Compact-5, with the old electronics/steppers working away is really nice to see. I also have a contact with a Compact-5 CNC lathe kicking around; have to see if they are willing to part with it, so that I have yet another project! JohnS. - - See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg. clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831iu=/4140/ostg.c lktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A puzzler
Without thinking too much about it... would it not be 255? (in computer terms - you don't start at 0) sam On 8/6/2013 10:25 AM, andy pugh wrote: I am in discussion with a chap who is retrofiting a Hardinge HXL. It has linear scales, interpolator boxes set to 256x and is running a 5i25/7i77 combo. The repeatability is good. Actually is is better than good, it returns to the exact same digit on a 0.1um (0.04) length probe every time. http://youtu.be/2oWc6val6ME The problem is that the travel distance isn't accurate. A 50mm move is out by 0.158mm. The encoder scale is set to 25600 (10um scales, 256 interpolation). It doesn't seem like it could be missed encoder counts or the repeatability wouldn't be so good. Any ideas where to look? Bear in mind that this is all done by linear scales. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=48897031iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A puzzler
1/25500 = 3.92156X10^-5 * 25600 * 50 = 50.196... did I do that right? not exactly .158 though.. How is he measuring it? latest email 1/25500 = 3.92156X10^-5 * 25600 * 2 = 2.0078 Aprox 70um? sam On 8/6/2013 10:25 AM, andy pugh wrote: I am in discussion with a chap who is retrofiting a Hardinge HXL. It has linear scales, interpolator boxes set to 256x and is running a 5i25/7i77 combo. The repeatability is good. Actually is is better than good, it returns to the exact same digit on a 0.1um (0.04) length probe every time. http://youtu.be/2oWc6val6ME The problem is that the travel distance isn't accurate. A 50mm move is out by 0.158mm. The encoder scale is set to 25600 (10um scales, 256 interpolation). It doesn't seem like it could be missed encoder counts or the repeatability wouldn't be so good. Any ideas where to look? Bear in mind that this is all done by linear scales. -- Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=48897031iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Update HAL values without stalling motion
I think you want http://linuxcnc.org/docs/devel/html/gcode/m-code.html#sec:M67-Analog-Output maybe... sam On 11/20/2013 04:16 PM, Charles Steinkuehler wrote: For my 3D printer, I am currently using the existing M1xx convention to do things like set the extruder temperature and set the cooling fan speed. The problem is that this causes a brief pause in coordinated motion as the whole of LinuxCNC comes to a stand-still, my shell-script is executed to set a HAL signal value, and motion resumes again. Each pause winds up turning into a small 'blob' of plastic as the extruder oozes a bit while it remains stuck in one spot. So...is there a way to communicate arbitrary values from gcode to HAL that doesn't cause motion to completely stop (or to stop for a lot less time than it takes to launch a sub-process running a shell script)? -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Slow G code
Robert has been working very hard on the new TP. Here is an example This program I found on the internet. (small line segments) http://electronicsam.com/images/KandT/testing/internet.ngc 533228 line program running G64P.005 Old TP 2:37:42 New TP 1:38:49 Quite an improvement!! The spiral.ngc program now starts at almost 400 ipm vs 110 ipm currently. There are some issues to work out yet - but as little time it has taken Robert to get this far - I don't think it will take long to get to a beta.. Using this config for testing http://electronicsam.com/images/KandT/testing/circblendlatest/ (500ipm max and 30in/sec^2 acc) sam On 12/05/2013 06:46 PM, Robert Ellenberg wrote: Hi All, As some of you know already, I'm working on an improvement to the linuxcnc trajectory planner that will allow much faster movement for engraving-type programs with lots of short segments. As part of this effort, I need test cases, both to find rare errors, and to estimate performance improvements. If you'd like to contribute to this effort, I'm looking for G-code that runs slower than the requested feed rate. In particular, I'm looking for programs that have lots of short segments that approximate smooth paths. If you have a program that you think should run faster and are willing to share it, please email it to me. While my fixes won't improve every issue, part of my goal here is to survey how common some problems are. If it turns out that a slowdown I consider rare is common in your programs, it will justify some additional work in that direction. Thanks! Rob -- Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Slow G code
Here is a crappy video showing the difference (first run is current TP - second run is Roberts hard work) https://www.youtube.com/watch?v=oUajH5BCOUQfeature=youtu.be spiral is made up of short line segments. The current tp has to be able to stop by the end of the next segment so it peaks at about 110ipm. The new TP can look 40 segments ahead. (that will be a configurable in the future..) and peaks at about 410ipm. Current status as I understand it. Read ahead works if segment transitions are -Line-Line -Tangent line-arc, arc-line -Tangent arc-arc Darn impressive. Great work Robert! sam On 12/16/2013 12:43 PM, Kent A. Reed wrote: On 12/16/2013 01:02 PM, John Alexander Stewart wrote: It's been a while since I wrote SLERPing code, but the project I wrote it for used Quaternions, which I don't think LinuxCNC uses?? Quaternions certainly made a lot of the internal maths easier. (code was in the FreeWRL VRML/X3D browser) *Does* LinuxCNC use Quaternions? Well, that depends on your meaning of the word use. If you look at the libnml/posemath/ routines you'll see a lot of internal usage of quarternions for the reason you name but most calls to the routines from the rest of LinuxCNC consist of customary and usual representations. What representations? Well, consider this snippet from posemath.h - /* translation types */ struct PM_CARTESIAN;/* Cart */ struct PM_SPHERICAL;/* Sph */ struct PM_CYLINDRICAL;/* Cyl */ /* rotation types */ struct PM_ROTATION_VECTOR;/* Rot */ struct PM_ROTATION_MATRIX;/* Mat */ struct PM_QUATERNION;/* Quat */ struct PM_EULER_ZYZ;/* Zyz */ struct PM_EULER_ZYX;/* Zyx */ struct PM_RPY;/* Rpy */ /* pose types */ struct PM_POSE;/* Pose */ struct PM_HOMOGENEOUS;/* Hom */ - You can browse the source code itself but it's faster to read the nearly 15-year old document http://www.isd.mel.nist.gov/projects/rcslib/posemath_examples.html Regards, Kent -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Slow G code (sam sokolik)
running it as fast as it could go - feedrate set to way more than the config would allow (config is 500ipm 30in/sec^2) While the penguin - (metric so .1 is about .004) parabolic blend (old)P.1=2:21 Strait G64=4:12 circular blend (new) P.1=1:41 Strait G64=2:27 this was from a while ago... there may have been improvements.. from my playing - around twice as fast for this configs. (for programs with lots of line segments) sam On 12/18/2013 05:41 PM, Greg Bentzinger wrote: Hey Sam; How does it the improved look ahead compare on the chips 3d NGC sample file? Greg -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo tuning problem
is one side of the servo wires getting grounded? Can you check the continuity of the servo brushes to ground? sam On 1/1/2014 3:15 PM, Ed wrote: On 01/01/2014 02:20 PM, Eric Keller wrote: On Wed, Jan 1, 2014 at 3:14 PM, Ed ate...@mwt.net wrote: Don't know the ratings but they are ElectroCraft E723 motors that came on the machine OEM an older DC motor might have a bad commutator bar. Or brush problems. The brushes look good, over 1/2 In left and lots of spring pressure. No torque in one direction but not the other sounds like something mechanical if the electronics are sound. Well Index left the dials on the ball screw shafts for the owners that did not trust those newfangled NC's. They do provide a good place to grab to check holding torque, lots one way and nil the other. After the amp faults it turns freely either direction. Ed. -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tramming puzzle
I think the table rotation is between the x and y axis... So - a square against the tee slots and then use the y axis? I could see some sort of fixture that sits on the table/aligned with the tee slots and has 4 bored holes that you probe and then do the math? sam On 1/17/2014 11:04 AM, Ed wrote: On 01/17/2014 10:34 AM, andy pugh wrote: My milling machine has a swinging table. This is excellent for gear hobbing, as I can set the table to the hob helix angle. If I forget to put it back I can make trapezoidal boxes. DAMHIK. I am wondering how to be sure that the table is properly square. I guess that the critical thing it needs to be square to is the Y slides. Vertical or horizontal spindle? Usually use a test indicator in the T slot and traverse the table. Ed. -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] cylindrical coordinate kinematics
I think mach has a place to tell what the 'radius' is of the rotary axis so the feed rate is calculated based on that. (but they cannot do kins and such) Inverse time really is the only way to go - that is what the big boys use. sam On 6/7/2012 10:49 AM, andy pugh wrote: On 7 June 2012 16:36, charles greenxxzzb...@yahoo.com wrote: in easier cases, abc is parallel to xyz. so you'd want to know the xyz position of the cutter point relative to the xyz positon of a rotation axis, How do we tell LinuxCNC / G-code where the rotation axes are in space? Frequently they will not be absolute or relative zero of the linear axes. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Lathe Threading
Your not still running the index through classic ladder - are you? (1ms refresh rate is going to kill your speed) On 06/09/2012 02:08 PM, Peter C. Wallace wrote: On Sat, 9 Jun 2012, Brian May wrote: Date: Sat, 9 Jun 2012 12:21:08 -0600 From: Brian Maybri...@do-precision.com Reply-To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Lathe Threading Low Level is 220mv High Level 3.12 Volts Well thats valid TTL so OK (as long as the 7I33 inputs are jumpered for TTL in) So the next step in tracing it is is to see if the GPIO for Z bit is visible in halmeter when you do the same test with a 1024 line encoder you will likely miss the index with HALScope on the GPIO bit above 60 RPM, so a real scope would really help in case you are losing the signal above a certain speed Peter Wallace -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] quick boot
I liked whatever you got when my parents where up (the connies supreme or something..) does that mean we cannot get scheduled until the first week of july - or that he won't even be able to look at it until july? On 6/12/2012 12:59 PM, steve...@newsguy.com wrote: Could you use Suspend/Resume instead? http://www.youtube.com/watch?v=Vzz1-FwIq28 Steve Stallings At Tue, 12 Jun 2012 09:16:28 -0700 (DST), you wrote Gentlemen, What would it take to headless boot LinuxCNC in 3 seconds? thanks Stuart -- dos centavos -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
