Re: [Emc-users] [OT] AC Solid State Relay
On Sun, 2009-04-12 at 22:52 -0500, Jon Elson wrote: > Kirk Wallace wrote: > > For this relay: > > > > http://document.sharpsma.com/files/s108t01_e.pdf > > > > what does "Non-zero crossing functionary" mean? > > > Some SSRs are designed to ONLY turn on at the zero crossing of the AC > voltage. > The others are usually called "random turn-on", meaning that they turn > on whenever the control signal is applied. > If you want to control a load by phase control, like a light dimmer, > then this is necessary. I think that is what the above Chinglish is > trying to convey in your quote. > > All SCR and Triac SSRs turn off at the current zero-crossing of the AC > cycle. > > > Jon Thanks Steve and Jon. I also found this link from wikipedia: http://www.allaboutcircuits.com/vol_3/chpt_7/5.html but I suspect the AC SSR's are a little more complicated. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] AC Solid State Relay
On Sun, 2009-04-12 at 22:04 -0400, John Kasunich wrote: ... snip > Regardless of the type of turn-on, once the Triac is on, it won't turn > off until the current through it goes to zero - even if the LED is off. > That's why SSRs only work for AC - in a DC circuit the current won't go > to zero. > > Hope this helps, > > John Kasunich Thanks John. Did you mean "That's why _SCR's_ only work for AC"? I was looking at two devices, both datasheets looked the same to me except: S108T02 has "Zero crossing functionary (VOX : MAX. 35V)" S108T01 has "Non-zero crossing functionary" I just want to turn a 24 VAC transformer on and off for my weathercam antenna rotor, so I suspect either one will work. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Question about encoders
On Sun, 2009-04-12 at 21:40 -0400, Cal Grandy wrote: > Can anyone direct me to information about reading and display quad. > encoder output? Several hours searching wiki etc. and I am less than > enlightened. > > DataTorque SM15 encoders. > > TIA > > Cal in VT If you are using a PC parallel port for your encoder, this should get you started: http://www.linuxcnc.org/docview/html//man/man9/encoder.9.html or it might give you some insight as to how other input options may work. I looked at the datasheet for your encoder: http://www.cmccontrols.com/downloads/incremental_encoders/sm15.pdf http://www.cmccontrols.com/incremental_encoder_sm15.asp Page two shows what the quadrature signals look like. Normally you would deal with what is shown as A, B and Z in the Output Signals chart or shown in the "Cable Color Code: Standard". You will need to assign parallel port pins to the HAL encoder "pins" described in the man(ual) document above. Then wire the encoder A, B and Z to the corresponding parallel port pins. If you want to use the "Cable Color Code: Differential Line Driver" option, you will need to to convert the A, A/, B, B/, Z and Z/ to A, B and Z at the parallel port end with something like: http://focus.ti.com/lit/ds/slls111b/slls111b.pdf The HAL encoder module will decode and pass the count information to its output "pins", which are usually connected to the axis and pid modules(?). A sample configuration is here: http://cvs.linuxcnc.org/lxr/source/configs/etch-servo/etch.hal -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] AC Solid State Relay
Kirk Wallace wrote: > For this relay: > > http://document.sharpsma.com/files/s108t01_e.pdf > > what does "Non-zero crossing functionary" mean? > Some SSRs are designed to ONLY turn on at the zero crossing of the AC voltage. The others are usually called "random turn-on", meaning that they turn on whenever the control signal is applied. If you want to control a load by phase control, like a light dimmer, then this is necessary. I think that is what the above Chinglish is trying to convey in your quote. All SCR and Triac SSRs turn off at the current zero-crossing of the AC cycle. Jon -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Question about encoders
Can anyone direct me to information about reading and display quad. encoder output? Several hours searching wiki etc. and I am less than enlightened. DataTorque SM15 encoders. TIA Cal in VT -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] AC Solid State Relay
Yes, the data sheet mentions phase angle control applications, so it is the style that turns on immediately, vs. the style that waits for the next zero crossing. Steve Stallings > -Original Message- > From: John Kasunich [mailto:jmkasun...@fastmail.fm] > Sent: Sunday, April 12, 2009 10:05 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] [OT] AC Solid State Relay > > Kirk Wallace wrote: > > For this relay: > > > > http://document.sharpsma.com/files/s108t01_e.pdf > > > > what does "Non-zero crossing functionary" mean? > > > I'm pretty sure it means that the Triac will fire as soon as > the LED lights up, regardless of where that is in the AC line > cycle. A zero-crossing SSR will wait until the AC voltage > across the Triac is about to cross zero before it turns on. > Waiting for a zero-crossing tends to reduce electrical noise > and possibly stress on the Triac and/or the load (depends on > the nature of the load). > > Regardless of the type of turn-on, once the Triac is on, it > won't turn off until the current through it goes to zero - > even if the LED is off. > That's why SSRs only work for AC - in a DC circuit the > current won't go to zero. > > Hope this helps, > > John Kasunich > > > -- > > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(com plete spindle) replacement suggestions?
Kirk Wallace writes: snip... > Cool, I'm going to have to add washing machines to my dumpster diving > list. > > Too late, got one on eBay. > > Kirk LOL! Way to go, Kirk! Tom -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [OT] AC Solid State Relay
Kirk Wallace wrote: > For this relay: > > http://document.sharpsma.com/files/s108t01_e.pdf > > what does "Non-zero crossing functionary" mean? > I'm pretty sure it means that the Triac will fire as soon as the LED lights up, regardless of where that is in the AC line cycle. A zero-crossing SSR will wait until the AC voltage across the Triac is about to cross zero before it turns on. Waiting for a zero-crossing tends to reduce electrical noise and possibly stress on the Triac and/or the load (depends on the nature of the load). Regardless of the type of turn-on, once the Triac is on, it won't turn off until the current through it goes to zero - even if the LED is off. That's why SSRs only work for AC - in a DC circuit the current won't go to zero. Hope this helps, John Kasunich -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] [OT] AC Solid State Relay
For this relay: http://document.sharpsma.com/files/s108t01_e.pdf what does "Non-zero crossing functionary" mean? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
Alex Joni wrote: > Hi there. > Some quick update about this thread. > I followed the suggestions people had ([1],[2]), and added some extensions > to the website www.linuxcnc.org: > > > > All of the above should work as advertised, but treat the service as a > "beta"-test. > Not just cool, but it actually works! Thanks!!! Jon -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(complete spindle) replacement suggestions?
On Sun, 12 Apr 2009 08:56:10 -0700, you wrote: > An SCR controller like a KBIC type (plenty in the US, but >apparently not in the UK) would work. Something like this maybe?: >http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370185220141 KBIC range are available in the UK, never many on ebay. They aren't expensive new from http://www.stmuk.co.uk/ Steve Blackmore -- -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
Ian W. Wright wrote: >Steve Stallings wrote: >"OK, it is working well, now could we have the sign in >on the main page give a clue to uninformed visitors >as to why they might want to register and sign in?" > >More particularly - why would anyone want to give out such >detailed information on an unsecure registration page with >no guarantees as to how the information might be used in the >future? I used to be shown on the old map from way back but >I see that I am not on the new one - however, I never will >be if I am required to register and broadcast my exact >property location to the world. > > I understand the sentiment here, but I think there are a couple of misconceptions. 1) it is not required that you enter your address at all 2) if you choose to enter it, you may be as non-specific as you like. For instance, you can enter "Sheffield, UK" as your address, and the pin should go to the "center of town". Alternatively, you can enter a latitude/longitude location, if you want to put the pin somewhere else. - Steve -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
Steve Stallings wrote: "OK, it is working well, now could we have the sign in on the main page give a clue to uninformed visitors as to why they might want to register and sign in?" More particularly - why would anyone want to give out such detailed information on an unsecure registration page with no guarantees as to how the information might be used in the future? I used to be shown on the old map from way back but I see that I am not on the new one - however, I never will be if I am required to register and broadcast my exact property location to the world. Ian W. Wright Sheffield UK -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Undo manual home
On Sun, Apr 12, 2009 at 07:40:32PM +0200, Lars Andersson wrote: > Great! > I am running 2.3.0 beta2 and now I found it in the Machine dropdown. > Can I make a button under "Manual Control" ? Nope, it's not configurable in this way. Everything has a keyboard shortcut, though. Chris -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] computer for Ems and bench mill
> Am looking locally for a used computer to run Emc2 and my bench mill on, > out in my shop. I am thinking something less than $100 over 1G Hertz > with above 500 MB of memory. A dvd reader and CD writer. I have a 15 > inch screen and am thinking to connect with my inhouse computer with a > wireless hook up. This for maybe a cadcam program hook up. > Does this seem like a reasonable solution for the job? Are their > any suggestions that I ought to be thinking about when looking for one?? > Doug > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users The same intent recently drove me to Ebay where an IBM M50 2.8, 712 ram, CD read but not write. was purchased for $39 including shipping. the draw back is the small form factor. Oh, and Latency is no better than the 700 mhz box it replaced. But I'm in no hurry ;-) I can now run axis where the lesser machine would not. So, yes ebay is a source. Cheap bits! > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] computer for Ems and bench mill
Take a LiveCD with you and pop it into the drive and boot up and to a Latency Test. If your going to use software step generation the lower the latency the better. John On 12 Apr 2009 at 12:04, Doug Pollard wrote: > Am looking locally for a used computer to run Emc2 and my bench mill > on, > out in my shop. I am thinking something less than $100 over 1G > Hertz > with above 500 MB of memory. A dvd reader and CD writer. I have a > 15 > inch screen and am thinking to connect with my inhouse computer with > a > wireless hook up. This for maybe a cadcam program hook up. > Does this seem like a reasonable solution for the job? Are > their > any suggestions that I ought to be thinking about when looking for > one?? > > Doug > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Setting up a bench mill CNC
On Sun, 2009-04-12 at 19:23 +0200, Lars Andersson wrote: > The text on this site does not say "optically isolated" so probably this > device isn't. It might be more like a digital buffer. The advantage of > opto isolators is that they break the ground connection between PC and > motor driver. > > >This >one looks interesting though: > >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260360862785 I agree, without knowing what chips are on the board and how they are wired it's harder to recommend using it. Just to fill out some of the issues. For connections between the parallel port and peripheral electronics, a chip like this: http://www.semicon.toshiba.co.jp/docs/datasheet/en/Opto/TLP627_TLP627-4_en_datasheet_071001.pdf Short URL version: http://alturl.com/rt6c On the bottom of page one, pins one and two of the device are connected to an LED. For parallel port output, the output pin is (sometimes) connected to a driver chip: (just one example) http://focus.ti.com/lit/ds/symlink/sn74ls241.pdf or http://alturl.com/mudt then to the LED. Whenever the pin goes high the LED turns on (or off if wired that way). The tiny arrows between the LED and the transistor to the right of the LED, indicate that the connection that controls the transistor is through the light from the LED. There is no electrical connection, so you can fry the transistor and the LED won't transmit any voltage back to the parallel port. The transistor is used to pass the signal to your driver, relay or other boards. For parallel port inputs, the transistor is used to switch a voltage on the parallel port input pin. There is some disagreement on how to interpret the amount of voltage isolation you can get from these devices, but this one indicates 5000V. Another variation of this is the SSR (solid state relay), which has a driver on the transistor side so they can drive larger loads, such as solenoids. http://pewa.panasonic.com/pcsd/product/pmos/pdf_cat/aqv10_.pdf or http://alturl.com/t3jp http://www.crydom.com/en/Products/Catalog/d_o.pdf or http://alturl.com/47zn These isolators can be on a break-out board or on the peripheral's I/O pins, or not used at all. You'll have to check the board's documentation or look on the board for chips that look like optocouplers. One down side is, everything you put between the output and an input will delay or change the original signal a little bit. Usually this is not a problem. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any (complete spindle) replacement suggestions?
if its the same motor as the MD65 lathe, I have a working but no longer used motor here as the lathe is no more (its now part of my mill and I hated the noise from the motor) In mid England taking up space Dave Caroline -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(complete spindle) replacement suggestions?
On Sun, 2009-04-12 at 17:40 +, tom wrote: > Kirk Wallace writes: > > > > > These are three phase motors? > > Hi Kirk, > > Yup, I think there might be an error in the lister's description. > > Here are a few more links (thanks for the cut/paste tip!) > > In the US: > > http://cgi.ebay.com/Frigidaire-Frontload-Washing-Machine- > Motor_W0QQitemZ180344630365QQ The link above is broken for me because it wraps the line. This one is shorter, but may wrap for some people. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180344630365 > In the UK: > http://cgi.ebay.co.uk/ARISTON-INDESIT-WASHING-MACHINE-MOTOR-part-no- > C00046626_W0QQitemZ110335684899QQ > > Mine looks almost the same as these. It is 3 phase, rated 190 V 850 Watt, 230 > Hz, 16,000 rpm. It has an encoder of some sort on the opposite end of the > motor > from the pulley - probably a low count device for speed feedback to the vfd. > I > have not run mine under load, but I would guess the the passive cooling is > good > and could easily be improved with a small fan. > Like I said, I have run it up to 24,000 rpm or so and the (not so) little > thing > really hauls! With a balanced coupler, I see no reason why it would not make > a > decent spindle motor with excellent speed control when driven by a flux > vector > vfd in constant torque mode, especially if the vfd can be set up for PID > control using the encoder feedback. > > Tom Cool, I'm going to have to add washing machines to my dumpster diving list. Too late, got one on eBay. Kirk http://www.wallacecompany.com/machine_shop/ -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(compl ete spindle) replacement suggestions?
Kirk Wallace writes: > > These are three phase motors? Hi Kirk, Yup, I think there might be an error in the lister's description. Here are a few more links (thanks for the cut/paste tip!) In the US: http://cgi.ebay.com/Frigidaire-Frontload-Washing-Machine- Motor_W0QQitemZ180344630365QQ In the UK: http://cgi.ebay.co.uk/ARISTON-INDESIT-WASHING-MACHINE-MOTOR-part-no- C00046626_W0QQitemZ110335684899QQ Mine looks almost the same as these. It is 3 phase, rated 190 V 850 Watt, 230 Hz, 16,000 rpm. It has an encoder of some sort on the opposite end of the motor from the pulley - probably a low count device for speed feedback to the vfd. I have not run mine under load, but I would guess the the passive cooling is good and could easily be improved with a small fan. Like I said, I have run it up to 24,000 rpm or so and the (not so) little thing really hauls! With a balanced coupler, I see no reason why it would not make a decent spindle motor with excellent speed control when driven by a flux vector vfd in constant torque mode, especially if the vfd can be set up for PID control using the encoder feedback. Tom -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Undo manual home
Great! I am running 2.3.0 beta2 and now I found it in the Machine dropdown. Can I make a button under "Manual Control" ? -Original Message- From: Chris Radek [mailto:ch...@timeguy.com] Sent: den 12 april 2009 15:56 To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Undo manual home On Sun, Apr 12, 2009 at 01:03:08PM +0300, Alex Joni wrote: > In the upcoming 2.3, I think there is an "unhome" ability. Yes it was added for exactly this reason! Just unhome Z, move where you want it, home Z. Chris -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Setting up a bench mill CNC
The text on this site does not say "optically isolated" so probably this device isn't. It might be more like a digital buffer. The advantage of opto isolators is that they break the ground connection between PC and motor driver. >This >one looks interesting though: >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260360862785 -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Setting up a bench mill CNC
On Sun, 2009-04-12 at 11:01 -0400, Doug Pollard wrote: ... snip > Kirk, Is there some built in device in the xylotex board that will > provide protection for the computer from Surges that might return to it > ? I have read this can be a problem. > > Doug I don't know. The documentation doesn't seem to include information on the circuitry behind the I/O pins. I use PCI parallel ports because they are cheaper ($15 for a dual port) than a break-out or buffer card. This one looks interesting though: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260360862785 --- Kirk http://www.wallacecompany.com/machine_shop/ -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] computer for Ems and bench mill
Am looking locally for a used computer to run Emc2 and my bench mill on, out in my shop. I am thinking something less than $100 over 1G Hertz with above 500 MB of memory. A dvd reader and CD writer. I have a 15 inch screen and am thinking to connect with my inhouse computer with a wireless hook up. This for maybe a cadcam program hook up. Does this seem like a reasonable solution for the job? Are their any suggestions that I ought to be thinking about when looking for one?? Doug -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(complete spindle) replacement suggestions?
On Sun, 2009-04-12 at 14:29 +, tom wrote: ... snip > I have a nice 400 Hz washing machine motor that does 17,000 rpm that I pulled > out of a dumpster, that I have been saving to pair up with a nice high speed > spindle. I have test run it on a Danfoss vfd and it was reasonably well > balanced at top speed. Like this: > > http://cgi.ebay.co.uk/Hoover-Washing-Machine-HNL-7146-Motor-and- > Brushes_W0QQitemZ190299650744QQcmdZViewItemQQptZUK_Home_Garden_Washing_Machines > _Dryers_Parts_Accessories_ET? > hash=item190299650744&_trksid=p3286.c0.m14&_trkparms=72:1686|66:2|65:12|39:1|24 > 0:1318 > > Has anyone ever used one of these with a vfd to power a high speed spindle? > > I wonder if Dirk's bearings would be able to handle the heat... > > Tom These are three phase motors? Oops, I just noticed brushes mentioned in the ad, so this is a universal motor, I beleive a VFD would not work with this. An SCR controller like a KBIC type (plenty in the US, but apparently not in the UK) would work. Something like this maybe?: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370185220141 I have wondered about vacuum cleaners as another source of high speed motors. They are brushed and noisy, but it seems that a lot of people throw their cleaners out when the belt breaks, so there are plenty of good ones available. I have seen some chatter about washing machine motors from Australia which are three phase out-runners. I've also noticed that some motorcycle alternators have the same out-runner layout. In case it might be useful, with eBay links, I paste the item number into the search box, then edit out everything but the item number to shorten the link. Using the item number from the above Hoover motor link, I got this: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190299650744 --- Kirk http://www.wallacecompany.com/machine_shop/ -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
This is not really a complaint as I am not sure if it is my fault or not. I can log on from my blackberry but will shortly need to log on again. Also, I cannot view the map. I tried to vote on one of the poles to see if it would work. I received a 403 error. This is likely my fault and I will work to fix it. Sent via BlackBerry from T-Mobile -Original Message- From: "Steve Stallings" Date: Sun, 12 Apr 2009 11:43:19 To: 'Enhanced Machine Controller \(EMC\)' Subject: Re: [Emc-users] Users Locations OK, it is working well, now could we have the sign in on the main page give a clue to uninformed visitors as to why they might want to register and sign in? Steve Stallings > -Original Message- > From: John Thornton [mailto:jet1...@semo.net] > Sent: Sunday, April 12, 2009 9:03 AM > To: Enhanced Machine Controller EEMC" > Subject: Re: [Emc-users] Users Locations > > > > On 11 Apr 2009 at 23:04, Alex Joni wrote: > > > Hi there. > > Some quick update about this thread. > > I followed the suggestions people had ([1],[2]), and added some > > extensions to the website www.linuxcnc.org: > > SWEET! > > You should see the flags on the map now... > > John > > -- > > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
OK, it is working well, now could we have the sign in on the main page give a clue to uninformed visitors as to why they might want to register and sign in? Steve Stallings > -Original Message- > From: John Thornton [mailto:jet1...@semo.net] > Sent: Sunday, April 12, 2009 9:03 AM > To: Enhanced Machine Controller EEMC" > Subject: Re: [Emc-users] Users Locations > > > > On 11 Apr 2009 at 23:04, Alex Joni wrote: > > > Hi there. > > Some quick update about this thread. > > I followed the suggestions people had ([1],[2]), and added some > > extensions to the website www.linuxcnc.org: > > SWEET! > > You should see the flags on the map now... > > John > > -- > > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Setting up a bench mill CNC
John Thornton wrote: > Doug, > > > > If you can pop over to the EMC forum and post a picture of your machine. > > John > > On 11 Apr 2009 at 13:00, Doug Pollard wrote: > > >> >> Doug >> >> >> -- >> This SF.net email is sponsored by: >> High Quality Requirements in a Collaborative Environment. >> Download a free trial of Rational Requirements Composer Now! >> http://p.sf.net/sfu/www-ibm-com >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> >> > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > John ,I guess G code generating was the wrong term I think I knew that Ems2 would not do that. I can program in G codes, though it has been a long time when I ran a Wasino lathe and a Makino Leblond mill some. I was shop foreman so only did this on a limited basis so I am by no means capable as I had many in the shop that could program and run circles around me. I had a 2 axis Bridgeport in my office and a Southbend lathe that I used to make tooling an occasional prototype stuff. My partner who was president fussed at me for having my file cabnets full of chips. I never thought when we sold the buisiness that I would ever want to run a machine again. But now, here I am, at it again. Thanks, Doug -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(complete spindle) replacement suggestions?
>> > > I have a nice 400 Hz washing machine motor that does 17,000 rpm that I > pulled > out of a dumpster, that I have been saving to pair up with a nice high > speed > spindle. I have test run it on a Danfoss vfd and it was reasonably well > balanced at top speed. Like this: > > http://cgi.ebay.co.uk/Hoover-Washing-Machine-HNL-7146-Motor-and- > Brushes_W0QQitemZ190299650744QQcmdZViewItemQQptZUK_Home_Garden_Washing_Machines > _Dryers_Parts_Accessories_ET? > hash=item190299650744&_trksid=p3286.c0.m14&_trkparms=72:1686|66:2|65:12|39:1|24 > 0:1318 > Tom The one linked to looks like a DC commutator motor (the vendor mentions brushes) - which was what our old washing machine had. At any event you might have to beware of duty cycle issues with these motors. Even a long spin is a short time compared with a mould machining session. John Prentice -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
Some folks who were already registered may want to edit - there are some SPECIFIC addresses that could be used by mischievous or malicious folks. :--) I see some people are closer than I previously knew! And some are a LOT farther! Greg www.distinctperspectives.com > -Original Message- > From: John Thornton [mailto:jet1...@semo.net] > Sent: Sunday, April 12, 2009 9:03 AM > To: Enhanced Machine Controller EEMC" > Subject: Re: [Emc-users] Users Locations > > > > On 11 Apr 2009 at 23:04, Alex Joni wrote: > > > Hi there. > > Some quick update about this thread. > > I followed the suggestions people had ([1],[2]), and added some > > extensions > > to the website www.linuxcnc.org: > > SWEET! > > You should see the flags on the map now... > > John > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Setting up a bench mill CNC
Kirk Wallace wrote: > On Sat, 2009-04-11 at 13:00 -0400, Doug Pollard wrote: > ... snip > >> Is there any reason why Emc will not run my xylotex board. >> > > EMC2 should work well. Do a search for Xylotex on the EMC2 wiki: > http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?EmcKnowledgeBase > > this should link you to the resources you need to get started. > > >> I would >> also like to know what kind of breakout board might be suitable. >> > > It looks like you don't need one, just a DB25 cable. > > >> Have >> been looking at some 269 OZ in motors but also thinking that my mill has >> a pretty sturdy spindle that maybe 425 0z in. might make better use of >> that. Since the table is only 18 inch long with 12in. of travel high >> speed might not be that important. I am assuming the more powerful >> motors may be slower?? >> Any other suggestions here would be greatly appreciated. >> >> Doug >> > > With my DC motor research so far, it seems the 269 oz.*in. motors should > do fine, but you should see what others are using on machines similar to > yours: > http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Case_Studies > > -- > Kirk > http://www.wallacecompany.com/machine_shop/ > > > > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > Kirk, Is there some built in device in the xylotex board that will provide protection for the computer from Surges that might return to it ? I have read this can be a problem. Doug -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] spindle motor broke down, any(complet e spindle) replacement suggestions?
> On Sat, 2009-04-11 at 22:32 +0200, Dirk wrote: > ... snip > > Hmm, these motors, and the SCR too, look interesting. But I have had > > my share from customs when I bought stuff in the US. And although > > these motors don't seem to be expensive, I don't know how shipping > > will turn out. > ... snip > > I have improved on that. See the pictures from the link above. This z- > > stage works pretty good. > > > > Dirk > I have a nice 400 Hz washing machine motor that does 17,000 rpm that I pulled out of a dumpster, that I have been saving to pair up with a nice high speed spindle. I have test run it on a Danfoss vfd and it was reasonably well balanced at top speed. Like this: http://cgi.ebay.co.uk/Hoover-Washing-Machine-HNL-7146-Motor-and- Brushes_W0QQitemZ190299650744QQcmdZViewItemQQptZUK_Home_Garden_Washing_Machines _Dryers_Parts_Accessories_ET? hash=item190299650744&_trksid=p3286.c0.m14&_trkparms=72:1686|66:2|65:12|39:1|24 0:1318 Has anyone ever used one of these with a vfd to power a high speed spindle? I wonder if Dirk's bearings would be able to handle the heat... Tom -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Undo manual home
On Sun, Apr 12, 2009 at 01:03:08PM +0300, Alex Joni wrote: > In the upcoming 2.3, I think there is an "unhome" ability. Yes it was added for exactly this reason! Just unhome Z, move where you want it, home Z. Chris -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Users Locations
On 11 Apr 2009 at 23:04, Alex Joni wrote: > Hi there. > Some quick update about this thread. > I followed the suggestions people had ([1],[2]), and added some > extensions > to the website www.linuxcnc.org: SWEET! You should see the flags on the map now... John -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] syncing two motors to one axis
On 11 Apr 2009 at 5:45, Len Shelton wrote: > > I am unsure of some of the syntax, and this is untested. I will be > back in > the shop in a few hours and will be able to try it out. When I'm testing I do a bit at a time if possible... > > Do you see anything blatantly wrong with any of my code? > > Do I have to name every signal, particularly the ones to the inputs > of the > logic gates? In other words is: Yes each signal needs a unique name. > >net home1 parport.0.pin-10-in and2.0.in0 > > the same as: > >net parport.0.pin-10-inand2.0.in0 > > ? > > >Len > > > > > -Original Message- > From: Stephen Wille Padnos [mailto:spad...@sover.net] > Sent: Friday, April 10, 2009 10:32 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] syncing two motors to one axis > > Len Shelton wrote: > > >Jon and Rob, > > > >You guys obviously know a lot more about the inner working of HAL > than I. I > >am still no closer to understanding what lines of code I need to > put into > my > >HAL file. > > > >Can you please translate this simple boolean text notation... > > > >home_en1 = dir OR NOT home1 > >home_en2 = dir OR NOT home2 > >step_1 = step AND home_en1 > >step_2 = step AND home_en2 > >home = ( ( home1 AND home2 ) AND NOT dir ) OR ( ( home 1 OR > home2 ) > >AND dir ) > > > >...to actual HAL syntax. > > > > > Well, I'll point you in the right direction anyway :) > > First off, the manual sections on HAL are quite good - you should > (re) > read them. > > I'm not sure your logic is correct. I don't believe that the home > signal should depend on the DIR signal. I'm pretty sure that home > should just be (home1 AND home2). If both switches are closed, then > you're home regardless of which way the DIR line is pointing. > > Looking at your logic description, these things are apparent: > 1) there are four occurrences of the word "OR" > 2) there are five occurrences of the word "AND" > 3) there are three occurrences of the word "NOT". Luckily, all of > the > signals that get inverted come from I/O (if you're using my HOME > equation), which provides both a normal and inverted output to HAL, > so > you don't actually need any NOT functions > 4) all of the logical operations are operating on exactly two items > (ie, > there is no "a OR b OR c") > 5) This is for only one axis (phew!) > 6) Changing the home equation to home=(home1 AND home2) reduces the > number of gates to 2x OR, 3x AND, and zero NOT (since you can use > the > inverted home1 and home2 inputs) > > Here's how to get 3 AND "gates": > loadrt and2 count=3 > > This will give you 3 two-input AND gates. Each one has a function > which > needs to be added to your base thread, before the motion controller > runs. This will be a little tricky to get right, since you want to > read > inputs before doing the logic operations, and you want results to > propagate through the logic caluclations correctly, you have to > think > about which "inputs" get connected to which logic elements, and the > order in which they are evaluated. I'd suggest drawing this out on > paper, using a grid. Start with the inputs on the left, run them > towards the right, using columns with only one gate in each logic > path. > When you add functions to the HAL thread, start at the top left and > add > the first column of functions from top to bottom. Then move over > one > column to the right and add those functions from top to bottom. > > This is the logic I would use, which may make the order the > functions > need to run mode obvious: > step1 = step AND (dir OR home1-invert) > step2 = step AND (dir OR home2-invert) > home = (home1 AND home2) > > Sorry for the long-winded and not very specific post. Hope it > helps. > - Steve > > > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com
Re: [Emc-users] Setting up a bench mill CNC
Doug, Keep in mind that the Oz In numbers for steppers are holding torque. This number is pretty much useless as it is a steady state or a not doing any work number. Take a look at automationdirect stepper motor charts for some real info on torque and speed. Some things to consider when converting a manual machine to CNC: How much force does it take to turn the lead screw? How much does the Z weigh and can you counter balance it so the Z motor does not have to lift dead weight? Skipping on, EMC does not generate G codes, it takes them and uses that info to run your machine. For simple things it is easy to write your own G Codes. There are some G Code Generators on the Wiki site that can do various things. Your assumtion that bigger steppers are slower is dead on. The xylotex board with a 24 volt power supply will be pretty slow and low on power. You may have to play with gearing some depending on your mill. There is a spreadsheet on the wiki that helps with gearing and other cool things. If you can pop over to the EMC forum and post a picture of your machine. John On 11 Apr 2009 at 13:00, Doug Pollard wrote: > Hi all, I have built a bench mill from a fairly heavy duty drill > press. I beefed it up where I could and filled the column with > lead > shot. It's pretty solid and chatter resistant :-) > My Grandson gave me a 4 axis controller and cables . I hope > to > make a four axis machine out of this to do a little light machining > on. > I rebuild microscopes and some other medical supplies for a > nonprofit > company that supplies these things where they are needed world wide. > My > years of machining know how is hard for them to get so I am trying > to > give a little something back. > The controller is an xylotex board , and a 24 volt power > supply. > Have been doing a little reading and am thinking I will need a break > out > board. I would like to use Emc to generate G-codes. I use > Ubuntu > .10 but am looking for another used computer to run Ubuntu 8.04 and > EMS > 2 on to control the mill. > I could get all the help I need from my grandson who holds me a > little in awe for my machining ability but would would rather ask > dumb > questions of you guys. > Is there any reason why Emc will not run my xylotex board. I > would > also like to know what kind of breakout board might be suitable. > Have > been looking at some 269 OZ in motors but also thinking that my mill > has > a pretty sturdy spindle that maybe 425 0z in. might make better use > of > that. Since the table is only 18 inch long with 12in. of travel > high > speed might not be that important. I am assuming the more powerful > motors may be slower?? > Any other suggestions here would be greatly appreciated. > > > Doug > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Undo manual home
You can home again.. It's true you can't travel 80 to go to the correct location, but you should be able to do it in 2 steps.. Go to 40 home again, go to 0 home again. In the upcoming 2.3, I think there is an "unhome" ability. Regards, Alex - Original Message - From: "Lars Andersson" To: "'Enhanced Machine Controller (EMC)'" Sent: Sunday, April 12, 2009 12:44 PM Subject: [Emc-users] Undo manual home > Hi list, > I am temporarily running my mill without a home switch on Z axis. > Travel is set to -4 , 70 > In AXIS, if I accidentaly press "home" in the wrong place, say 80, how can > I > jog past my incorrect home position towards the real home at 0? > The only way I have found so far is to restart AXIS. > > > > > -- > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-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: 8.5.287 / Virus Database: 270.11.53/2054 - Release Date: 04/11/09 10:51:00 -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Undo manual home
Hi list, I am temporarily running my mill without a home switch on Z axis. Travel is set to -4 , 70 In AXIS, if I accidentaly press "home" in the wrong place, say 80, how can I jog past my incorrect home position towards the real home at 0? The only way I have found so far is to restart AXIS. -- This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
