Re: [Emc-users] Tool Shape
On 04/20/2014 12:54 PM, Pete Matos wrote: Good luck man. I would love to see wear columns for each of the two mill related offsets length and diameter. Similar to the Haas and many other controls where you just input the base number into the length and diameter A soon to be released lathe might have wear offsets, but I have no idea if it is similar to Haas. Daniel Rogge would be the one to talk to. https://www.tormach.com/blog/tormach-lathe-update-winter-2014/ http://sourceforge.net/p/emc/feature-requests/103/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tool Shape
On 04/20/2014 03:48 PM, andy pugh wrote: On 20 April 2014 17:28, Pete Matos petefro...@gmail.com wrote: Yeah I know the Haas has the diameter column as well as wear column for the TLO. I am quite surprised that LinuxCNC does not have these most simple items let alone radius and shape comp. The CNC controller doesn't know enough about the material shape to be able to do anything sensible with (for example) ball-nose radius. Which isn't to say that the information couldn't live in the tool table. I want to use an end mill corner radius with a conversational facing routine. We are pulling the tool diameter from the table and having the operator enter in the full depth diameter (tool dia - 2*corner radius). I added to the tool comment field 'CR=x.xxx' and search for the CR= to get the value (not exactly true but effectively the same). This way the tool information I need comes from the table and can be reused. The current tool-table has a fixed size. It can currently handle 56 tools. If you added nose radius for milling tools then it would hold 50 tools (at a guess). I did start on making the tool table a lot cleverer. It would be a database (which means that you can actually add any data fields you like for your own purposes, LinuxCNC will just ignore things it doesn't know how to use) Redis maybe? I eventually ended up with a scheme where all the machines in a factory could share a tool database, and each machine would know what tools were available to it. I think that is the way to go. I kind-of stalled with waiting to see what happened to NML. There was a preview branch that I made, but there was no apparent interest in it. I suspect there won't be any interest until it becomes the next greatest thing. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Solar, A round toit generator
On 04/18/2014 12:27 AM, Gregg Eshelman wrote: On 4/18/2014 12:05 AM, yann jautard wrote: Le 17/04/2014 09:08, Steve Blackmore a écrit : Modern panels are designed to work in daylight and don't need full Sunlight. Well not really. There two main technologies, cristalline and amorphous. Cristalline cells needs full sunlight to deliver some usable power. Their efficiency is better. Amorphous cells can use indirect light like you have on cloudy day. But their efficiency is a little bit lower, wich is not a problem because they are cheaper, so for the same peak power you will pay the same. but you need more surface to install them. While we are at it. I need to cut these down to make battery chargers for my tractors. http://www.ebay.com/itm/200834656851 Just picking them up can break these, let alone trying to cut them. Has anyone found a way to cut these? Laser cutting is probably the best method, but of course the cost of a laser cutter is to high. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Brake resistor question
On 04/17/2014 06:56 AM, Viesturs Lācis wrote: Hello! I have three chinese servo drives in the waterjet machine and they are constantly faulting with overvoltage error. Since I have not yet added any braking resistors, it seems obvious that I should do so. The question is: how do I determine appropriate resistance and rated power values for the resistor? Motor parameters are here: http://www.cutting.lv/fileadmin/user_upload/tg-motor.pdf Currently max current in motors is set to 1,4A, which makes me think that actual motor power is 500W. Experienced guy suggested braking resistor with 100-150 ohm resistance. But how do I determine correct rated power? Or is it that I just take the biggest power available as it cannot be too high? Viesturs Some VFD manuals have sections covering braking resistors. Some resistor modules have sensors or protection devices of some type. The Ohms and voltage values will set the current going through the resistor. V = I * R or V / R = I, let's say 240V / 100 Ohms = 2.4 Amps. Watts = V * I or 240 * 2.4 Amps = 576 Watts. If you go higher in Ohms, you will get less braking. The VFD's braking circuit will likely have a maximum current rating as well as the motor. One of my shop-made braking modules (four gold colored resistors) is bolted to the back of my VFD here: http://www.wallacecompany.com/cnc_lathe/HNC/00024-1a.jpg -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Brake resistor question
On 04/17/2014 07:25 AM, Kirk Wallace wrote: On 04/17/2014 06:56 AM, Viesturs Lācis wrote: Hello! I have three chinese servo drives in the waterjet machine and they are constantly faulting with overvoltage error. Since I have not yet added any braking resistors, it seems obvious that I should do so. The question is: how do I determine appropriate resistance and rated power values for the resistor? Motor parameters are here: http://www.cutting.lv/fileadmin/user_upload/tg-motor.pdf Currently max current in motors is set to 1,4A, which makes me think that actual motor power is 500W. Experienced guy suggested braking resistor with 100-150 ohm resistance. But how do I determine correct rated power? Or is it that I just take the biggest power available as it cannot be too high? Viesturs Some VFD manuals have sections covering braking resistors. Some resistor modules have sensors or protection devices of some type. The Ohms and voltage values will set the current going through the resistor. V = I * R or V / R = I, let's say 240V / 100 Ohms = 2.4 Amps. Watts = V * I or 240 * 2.4 Amps = 576 Watts. If you go higher in Ohms, you will get less braking. The VFD's braking circuit will likely have a maximum current rating as well as the motor. One of my shop-made braking modules (four gold colored resistors) is bolted to the back of my VFD here: http://www.wallacecompany.com/cnc_lathe/HNC/00024-1a.jpg Another thing that comes to mind, without a braking resistor, you essentially have a resistor of very high Ohms. When you call for braking the motor turns into a generator and the generated voltage goes into the VFD's braking circuit which at this point presents no load, so the voltage goes too high. If you configure the VFD settings to slow down over a longer time, less voltage goes to the braking circuit and you can avoid the over voltage alarm. If you want faster braking, set the VFD to a shorter braking time, but also add some braking load by reducing the braking resistance. Since we are starting with nearly infinite Ohms, any reduction will help quite a bit. You can reduce Ohms and braking time up until the current limit of the braking circuit and motor. Once you have the Ohms value, you can calculate the Watt rating for the resistor. If the resistor gets hot, increase the braking time or add a heat sink. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A round toit generator
On 04/16/2014 08:06 AM, Gene Heskett wrote: On Wednesday 16 April 2014 11:02:03 andy pugh did opine: On 16 April 2014 02:37, Gene Heskett ghesk...@wdtv.com wrote: So I would have to build a rocket stove. or cobble up a charcoal forge. You may be under-estimating the power of a MAPP gas torch. I have one of them, but the valves are junk, its impossible to adjust for a proper flame and hold it for more than a second, then it coughs and blows itself out. Genuine Burns-o-matic too. Closed off, both bottles leak to zip in about 2 weeks. Biggest rip off of a tool I ever bought. Is it worth wasting money on another? I think pushing your home-made furnace up the list might be a good idea. Then you know who to call when it doesn't work :). I did this: http://www.wallacecompany.com/machine_shop/Furnace/ Using the burner on its own with propane comes in handy too. Oops, looking at the pictures, I now realize I don't show any propane bits. I seem to recall needing to go to the propane shop to get a fitting to go between the bottle and the regulator, and a hose between the regulator and the torch. The rest is just common plumbing fittings and some drill press work (although I used a lathe too). I'll try to get some more propane hardware pictures posted to the site today. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] A round toit generator
http://yertiz.com/cnc/round.htm -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] A round tuit generator
On 04/15/2014 10:11 AM, Gene Heskett wrote: On Tuesday 15 April 2014 13:05:51 Kirk Wallace did opine: http://yertiz.com/cnc/round.htm Chuckle, but that isn't the one I've been looking for, Kirk. I need a quarter sized coin that says in circular text on one side This is YOUR round tuit and on the other side now, next excuse? I have a place for around 10 of those. But I am not the artist to do it, darnit. Cheers, Gene You might look at these links: DeskEngrave (DeskCNC) StickFont (NCPlot) DeskEngrave (DesKAM) here: http://www.scorchworks.com/Fengrave/fengrave.html#related -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] OT: Way Better Than Another 3D Yoda
https://www.youtube.com/watch?v=XU3AZmf6O7I -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Put Bad Developers to Shame Dominate Development with Jenkins Continuous Integration Continuously Automate Build, Test Deployment Start a new project now. Try Jenkins in the cloud. http://p.sf.net/sfu/13600_Cloudbees ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [Emc-developers] [ANNOUNCE] Machinekit project
On 04/03/2014 12:03 PM, John Alexander Stewart wrote: Steve; I'm still stuck lathe wise though, I may just have to bite the bullet and get a Siemens or Fanuc control otherwise I may well be in the grave before it gets released here or Mach 4 turn materialises. I thought the new Tormach lathe runs LinuxCNC? Or are the reports out there wrong? There might be a hint here at the bottom of the page: http://www.tormach.com/lathe_specs.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] [Emc-developers] [ANNOUNCE] Machinekit project
On 04/03/2014 12:46 PM, Kirk Wallace wrote: On 04/03/2014 12:03 PM, John Alexander Stewart wrote: Steve; I'm still stuck lathe wise though, I may just have to bite the bullet and get a Siemens or Fanuc control otherwise I may well be in the grave before it gets released here or Mach 4 turn materialises. I thought the new Tormach lathe runs LinuxCNC? Or are the reports out there wrong? There might be a hint here at the bottom of the page: http://www.tormach.com/lathe_specs.html A little bit more here: http://www.tormach.com/blog/tormach-lathe-update-winter-2014/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Toolchanges
On 03/24/2014 10:13 AM, Sebastian Kuzminsky wrote: On 03/24/2014 10:37 AM, andy pugh wrote: I wonder if I can modify the manual toolchange code to send me an SMS when it needs a new tool? Seems like that'd be easy to do by remapping M6. What about writing a HAL component and connecting the pins to the tool change loop? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Toolchanges
On 03/24/2014 09:37 AM, andy pugh wrote: I wonder if I can modify the manual toolchange code to send me an SMS when it needs a new tool? In case it might be handy: http://www.linuxquestions.org/questions/linux-general-1/how-to-send-sms-on-linux-pc-933598/ Maybe check your phone provider for a SMS e-mail or other port? Years back, I had my routers send me SMS messages when a link went down. It turned out they went down all the time, so I had to remove the SMS feature. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mirrored lathe
On 03/21/2014 09:57 AM, Marius Liebenberg wrote: ... snip The change over from one spindle to the other will happen as a move to the centre of the lathe where the reference position will be. There will be code in the beginning of the job loop to probe the material and then run the gcode from there. So I envisage some python code to control the spindles via hal. The solution will have a gladevcp panel with cotrols on it. Probaly to select the right spindle and to swap the coordinate system. That is why I want to keep the gcode as one file and do the swap in some other fashion. I was hoping to use MDI to swap the coordinates. I am sorry I am not close to the machine so I cannot send a picture of it. Maybe something like this?: https://www.youtube.com/watch?v=fJov8SdmsS4 I would tend to use the hardware and LinuxCNC as-is then do all the customization in a CAM or a g-code generator. Switching Z axis direction on the fly seems risky or difficult. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] I$@)^ another C41 gone to hell.
On 03/16/2014 09:35 AM, Dave Cole wrote: On 3/16/2014 10:24 AM, Mark Wendt wrote: On Sun, Mar 16, 2014 at 12:22 PM, Dave Cole linuxcncro...@gmail.com wrote: Speaking of feedbag time, completely un-LinuCNC and un-machine related, spent yesterday smoking a Boston Pork Butt. First time I ever did one of those. O. M. G. Is it tasty... Mark Gee Mark... Thanks a lot. I was doing ok before, but now I am hungry and thinking about my rib roasting techniques. I think I need to practice again. Smoking them would be even better.. :-) Dave Sorry Dave. ;-) Smoked a full rack of ribs a coupla weekends ago. They were mighty tasty too. ;-) Mark Wowh... gotta go rib shopping soon! :-) Now what was I doing before I read this.. Dave Yes ... ... fresh picked squash sautéed with onions, red pepper, broccoli, served with rice. Fresh picked spinach, and cherry tomatoes, with honey mustard dressing. No suffering imposed on fellow earthlings, conserved water, and healthy living soil. It doesn't get much better. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] I$@)^ another C41 gone to hell.
On 03/15/2014 04:44 PM, Peter Homann wrote: Hi, If you are after closed loop spindle control for a KBIC style treadmill controller a 5Hz PWM signal driving a PWM to analog converter is unlikely to provide a satisfying result. Most close loop control systems use a 1KHz update rate. You may get adequate results with a 100Hz update but 5Hz is too slow. As a side note on KBIC controllers. I believe they have an analog feedback loop by sampling the forward voltage from the motor during the AC input zero crossing. Motor voltage = RPM. To me, its quite clever. I don't know if there are many analog designers any more, but I guess there is at least one. KB has a number of accessories available to go with the KBIC, so don't forget to check their website. (I have no connection to KB, but after studying the KBIC internals, I'm a bit of a fan) Further to that, most converters including my DigiSpeeds filter the analog output to smooth the control voltage. Also the KBIC controllers are also doing the same thing resulting in a lag that will be hard to compensate for. Because the KBIC has an internal loop, if it works, it may not be worth fixing with another loop, but then again. Another thing, the KBIC is a Speed Controller as opposed to a servo drive that has four drive modes. It's really designed for applications that don't change speed or reverse quickly. It can be made to brake and reverse, but one is better off with a different drive for applications like rigid tapping. I think a Pico PWM drive might do nicely (but check with Jon on the filter caps and inductor heat for steady state applications). That said you can have feedback that will help to maintain a constant speed and correct the speed over a few seconds. Earlier Mach3 version had this capability and it worked quite well. You could see the spindle speed creep up to the set speed over a second or two. When the speed dropped as cutting started, the speed would increase back to the set speed. Cheers, Peter Hey, Peter H. Glad to see that it seems you're doing well. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn Graph Databases - Download FREE O'Reilly Book Graph Databases is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc stepper mill configuration
On 03/07/2014 05:56 PM, Bill wrote: Thanks Andy How do I do speed/force/power calculations? Bill You could try to fit a pulley to where the hand wheels are now. Then wrap with a string and hang a weight to the string. Keep adding weight until the axis moves the way you want. The torque will be the weight times the radius of the pulley. A spring scale would probably more convenient to use, if you happen to have one. You will also need to add some torque to account for cutting forces. If you have leadscrews instead of ball screws, the cutting torque will need to be much higher. I strongly suggest having preloaded ball screws to reduce the torque needed, but more importantly, get rid of backlash. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Subversion Kills Productivity. Get off Subversion Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Printrboard and LinuxCNC
On 02/28/2014 04:10 PM, Steve Blackmore wrote: ... snip There is virtually no limits to program lengths since tape died so writing subs isn't necessary to save space and serves no other purpose other than living in the 80's (or earlier :) Steve Blackmore I tend to agree. I have the loops in the g-code generator and automatically get ... (see below) Using Python it could be similar effort to write a generator routine as to write the g-code subs. ~~ G7 (Dia. Mode) G18 (XZ Plane) G90 (Absolute Distance Mode) G40 (Turn Cutter Compensation Off) G20 (units in inches) G54 (Work Offset) G30 Z #5422 (Park Tool) T 0303 (Set Roughing Parameters) (Number of roughing passes = 4) (Adjusted roughing DoC = 0.0468) (CSS, Spindle - feet/minute, Maximum RPM) G96 S 30 D 2500 (Feed Rate - inches/revolution) G95 F 0.5000 (Units per Revolution Mode) M8 (Coolant ON) M3 (Spindle ON, Forward) G0 X -2.1000 G0 Z 0.0500 (Pass 1) G0 X -2.3207 Z -0.5315 G42 G0 X -2.3207 Z -0.5000 G3 X -1. Z 0.1603 I 0.6603 K 0. G40 G0 X -2.1000 Z 0.0500 (Pass 2) G0 X -2.2271 Z -0.5315 G42 G0 X -2.2271 Z -0.5000 G3 X -1. Z 0.1136 I 0.6136 K 0. G40 G0 X -2.1000 Z 0.0500 (Pass 3) G0 X -2.1336 Z -0.5315 G42 ... -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] USB Camera for edge finder?
On 11/07/2013 03:15 AM, Russell Brown wrote: I've been playing around with camview and a little 10mm endoscope type USB camera to see if I could rig such a thing up as an edge finder permanently mounted my mill's head. If you are having trouble finding camview, I have had some success using a GladeVCP window and placing a Pygame video display within it. Pygame can also draw text or retical lines over the display. http://www.linuxcnc.org/docs/2.5/html/gui/gladevcp.html http://www.pygame.org/docs/ref/camera.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] MPG pendant
On 02/09/2014 11:35 PM, Marcus Bowman wrote: Nice and straightforward. Is that a 100 pulse per turn encoder? Does that give enough resolution? I made this one as a proof of concept: http://www.wallacecompany.com/machine_shop/Shizuoka/mpg_proto-1a.jpg It has 100 pulses/rev, 25 cycles/rev. and works well for axis jogging. I expect to use many of these, so I need them to be as inexpensive as possible. Making them in house is the cheapest so far. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tormach mill, unique design or Chinese inside?
On 01/29/2014 11:10 PM, Len Shelton wrote: ... snip It may be true that Tormach designed the casting, although I don't see much need to as there are many existing slug designs. Then it would be a Chinese machine with Tormach's name on it. It's a Tormach machine which happens to be made in China. They probably did design the sheet metal. But the spindle, belts, pulleys, electronics, motors, ball screws, couplers, linear rails, and bearings - you know all of the components that actually function - are almost certainly all off-the-shelf Chinese components. The design and specs come first, if there is an off the shelf part that meets the specs, they use it, if not, they figure out how to get it made. If they were using brands like IKO or THK - surely they'd brag about that (using Japanese parts instead - LOL). There are actually some really nice Chinese controllers being produced for cheap, so why they are still using Mach3 is beyond me. Mach3 is used mostly because that's what their customers expect and want. And here is a fun fact: If the Chinese factories want even better quality, they actually import components from Taiwan, which has about a 40 year lead over Chinese manufacturing technology. Again, I don't have a problem with Chinese components myself. But the question I have is... if you find a quality Chinese integrator and specify the way the machines must be built, tested, and to what tolerances they must meet - does that then make it an American product? I guess if you think the iPhone is an American product because Apple designed the skin around which the Chinese components are housed, then yes. But that would make Mach3 on Windows the equivalent of iTunes on iOS, which may not be that much of a stretch - haha. Len An Apple product is an Apple product because you get a customer experience that is unique to Apple. It's like the difference between Snap-On, Craftsman, and Who-Knows tools, just from the name there is a different expectation of performance and value, based on reputation. I have a PCNC770 in my shop. I can't speak officially for Tormach but indications are that Tormach creates all of design and specifications and outsources the manufacture. Their engineering documents on the website and the offering of training classes shows that the products are theirs from beginning to end. (I am biased) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Tormach mill, unique design or Chinese inside?
On 01/28/2014 03:37 AM, andy pugh wrote: On 28 January 2014 04:16, Gregg Eshelman g_ala...@yahoo.com wrote: Is the Tormach mill a design unique to that company or do they take some off the shelf Chinese mill and wrap it up all fancy with added parts? http://www.tormach.com/our_story.html Seems to state that the parts are made in Asia to their own designs. Castings are fairly cheap, there is no real reason not to have custom ones made. I have a PCNC770 in my shop. I can't speak officially for Tormach but indications are that Tormach creates all of design and specifications and outsources the manufacture. Their engineering documents on the website and the offering of training classes shows that the products are theirs from beginning to end. (I am biased) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Error starting EMC
On 01/12/2014 07:14 AM, jrmitchellj . wrote: Looks like it did not find you parallel port. (just my guess by looking at the kernel message) Actually, I think the this error message: insmod: error inserting '/usr/realtime-2.6.32-122-rtai/modules/emc2/hal_ppmc.ko': -1 Operation not permitted indicates that the Pico-Systems PPMC card was not found, so the module wasn't loaded. The card may not have power or is damaged. If you have verified that you have power to the board, Pico-Systems has a diagnostics utility that may help from there. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Spindle control on BBB
On 01/03/2014 11:03 AM, Jared Turner wrote: I’m using a BBB with LinuxCNC to retrofit an old CNC mill. I have all of the stepper motors working, but I would like to add programmatic control of the spindle. The motor drive uses an analog signal, so I bought a digital pot so the speed can be controlled digitally. How do I add support for this with the existing HAL code? I want to retain the extruder control so I can use the mill for a 3d printer. I have a link to the digital pot’s datasheet below. Thanks for the help. Spindle drivers come in different forms, but often are VFDs or SCR DC. VFDs are often controlled with a PWM signal going to an opto-coupler. An example is here: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?VFD_Digital/Analog_Interface also try searching 'vfd' on the wiki: http://wiki.linuxcnc.org/cgi-bin/wiki.pl Or with SCR or KBIC type drivers, again a PWM and opto-coupler can be used: http://www.wallacecompany.com/machine_shop/kbic/ The SCR drivers usually have a floating input at high voltage, so be careful. http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Closed_Loop_Spindle_Speed_Control http://www.cnc4pc.com/Store/osc/index.php?cPath=25osCsid=4ee7c2af33a2df353290adab83b731b7 http://linuxcnc.org/docs/html/man/man9/pwmgen.9.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] maximum number of queued MDI commands exceeded
On 12/29/2013 10:17 AM, Konstantin Navrockiy wrote: I try to give few commands MDI, error: 'maximum number of queued MDI commands exceeded' how to fix it? ... snip I may have had a similar problem to yours. I fixed it by creating an 'o' subroutine file, then calling the file from the MDI line. ~~~ subroutines/probe_corner.ngc ~~~ oprobe_corner sub (probe to find south-west corner and set origin) #x_max = [#_ini[AXIS_0]MAX_LIMIT - #5221 - .001] (Position of G54 east end) #y_max = [#_ini[AXIS_1]MAX_LIMIT - #5222 - .001] (Position of G54 north end) ... (more stuff) G53 G0 Y #y_start_g53 G53 G0 X #x_start_g53(return to start) F #feed_rate oprobe_corner endsub M02 (end program) ~~~ subroutines/probe_corner.ngc ~~~ I seem to recall a limit of ten lines before the MDI queue barfs. Calling the subroutine doesn't use MDI and throttles the feeding of the lines properly. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Lathe spindle encoder, Mesa 7i76.
On 12/18/2013 09:11 AM, andy pugh wrote: On 18 December 2013 16:55, Kirk Wallace kwall...@wallacecompany.com wrote: The installations I have seen so far just bed them in a glob of glue. I was hoping to use a more formal method. Mine are slotted into bores in an aluminium plate, but glue was still involved: https://picasaweb.google.com/lh/photo/pyvsRqIQpQalCxvaiS52cdMTjNZETYmyPJy0liipFm0?feat=directlink I had to take steps to insulate the leads, and perhaps press-fitted into holes in a piece of delrin would be better. I'm thinking of making up a PCB so I have a decent chance at soldering the bits together. Then potting the whole thing into the housing with a pigtail out the back. That means I need to dust off my schematic and layout skills and get a board designed and sent off to fab. Maybe similar to this: http://www.digikey.com/product-detail/en/MPS45WGW/CKN6004-ND/253324 http://wallacecompany.com/tmp/gear_sensor-1a.svg I noticed your sensors don't have matching sensor planes? http://wallacecompany.com/tmp/image2826.png -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] C2000 vfd + AC inductor motor + LinuxCNC
On 12/11/2013 09:40 AM, Dave Cole wrote: ... snip Siemens had hybrid motors that were not standard induction motors at the time that could do better positioning but they were as expensive ore more expensive than other companies servo drive systems and were generally only used for very large HP/torque applications that required some level of positioning at high power levels.Think big $$. Dave Speaking of getting creative with induction motors, I found this recently. It may be of interest. http://powerelectronics.com/power-management/how-run-split-phase-induction-motor-three-phase-inverter -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] New Reprap name.
On 12/10/2013 03:05 AM, andy pugh wrote: http://www.reprappro.com/new-electronics-new-reprap-new-distributor/ Apparently named after an entomologist. But the mechanism is very similar to: http://www.lathes.co.uk/ormerodhandshaper/ More than coincidence? In thinking about a better RepRap I remembered Lindsay Books and visited the website -- crud, they are retired, that's sad. http://www.lindsaybks.com/ Gingery seems to be active: http://www.gingerybookstore.com/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Acra CNC refit progress.
On 12/10/2013 10:50 AM, Dave Cole wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on repetitive parts? Dave On 12/10/2013 12:56 PM, Stephen Dubovsky wrote: Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has positive drive but a R8 power drawbar absolutely whoops QC30 in tool change speed ease. Push button vs having to yank on a wrench both in and out. Its not really an improvement. SMD My random thoughts. I have just started using the R8/Tormach toolholding system and find it far more convenient than plain R8. Changes are as fast as grab a wrench, loosen draw bar enough to slide tool holder out, put next holder in, tighten, done. It features repeatable Z offsets, and offsets can also be set off the machine without a special tool holder holder. A power draw bar really isn't needed unless one has an automatic tool changer. The only down side might be that R8 is not as strong as 30 taper, but the Tormach version is stronger than plain R8. I would, given a large budget, prefer 30 or 40 taper with a power draw bar. I believe a Quick Change spindle can be drilled to use normal (CAT, BT, NMTB) taper holders with a draw bar. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Acra CNC refit progress.
On 12/10/2013 12:28 PM, andy pugh wrote: On 10 December 2013 20:13, Kirk Wallace kwall...@wallacecompany.com wrote: I would, given a large budget, prefer 30 or 40 taper with a power draw bar. My power draw-bar cost me £40, and half of that was because I decided to anodise the parts. (My mill was 30 INT as delivered, and is now using BT30 tooling) The Tormach power drawbar system for TTS looks reasonably easy to copy. I hated the time spent to operate the MT3 spindle on the previous mill out of all proportion to the time it actually took. My thinking is the cost would be in getting or making a 30 taper spindle to replace the R8. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Acra CNC refit progress.
On 12/10/2013 07:21 PM, Jon Elson wrote: On 12/10/2013 12:50 PM, Dave Cole wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on repetitive parts? Why do you say that? You can get end mill holders for R8, and they are as repeatable as any other tool holder. Yes, collets won't give you repeatable length, of course. I have a whole tray of end mill holders, and rarely use the collets. Jon For many years, I only used collets in my Bridgeport because I didn't know any better. It also took working for someone else find out about lathe soft jaws and the spider for trimming them. By the time I get the hang of this CNC stuff, it will be time to go. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Laser engravng
On 12/06/2013 12:23 PM, Ron Bean wrote: ... snip Instead of photo resist, we use black spray paint, and etch the paint away with a laser cutter. We've tried cutting circuit boards with a CNC engraving machine, with varying results. The main problem seems to be keeping the board absolutely flat-- it tends to warp, and then you don't get a consistent depth of cut. There is a method of height mapping the board ahead of time, and using the computer to compensate while engraving. I don't know the details, but it does seem to work. I think it's a plug-in for Mach3. Very careful mounting might also work. I have been thinking of using paint resist but engrave the resist off, which might work if the Z variation is within the copper thickness. I guess the engraving mill would also need to have vertical sides too - maybe not such a good idea. I have tried laser printer/iron-on transfers but this isn't very accurate and not good enough for two sided boards. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] C2000 vfd + AC inductor motor + LinuxCNC
On 12/05/2013 07:44 AM, Leonardo Marsaglia wrote: Well I tried like Andy said increasing the ferror and I can work a lot better. Also my acceleration was too much so I decreased it and now I have a error of 0.2 mm without fine tunning and with the motor moving air for now, I guess that when it's attached to the screw this will be a lot better. One thing about that error is that the motor keeps oscillating between those two points but never stops. Is this a normal behaviour on a bad tunned motor? If I tune it well I would expect the oscillation to dissapear or at least stop at some moment? Thanks as always! Leonardo. There often is a difference between the feedback resolution and the motor resolution. For instance, if your motor can be moved to within a degree of position, but your encoder feed back can report in tenths of a degree. When you command a position, the motor will get to within a degree, but your encoder says you are not there yet. Over time, your PID will increase its power to make a correction and finally move the motor. The motor moves another degree and over shoots the original position, the encoder reports this and the PID tries to correct in the other direction, causing an oscillation of +/- one degree or more. There should be a deadband parameter you can set to tell the PID to ignore a certain amount of error. Using HALscope to show the position or velocity command and feedback show show this hunting and may give you an idea how much there is. Posting your HALscope screen may help too. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] C2000 vfd + AC inductor motor + LinuxCNC
On 12/04/2013 02:19 PM, Leonardo Marsaglia wrote: ... snip I managed to move the motor and do some tests but I can't get rid of the oscillation from the PID. If I follow the classic way of tunning the algorithm when I increment P I don't see any oscillation until I disturb the motor. When that happens I get a really strong vibration and right after that a following error. What I'm saying is I can't even start to test my error to decrease it. My vfd is configured with +/-10 volts input and the endoer is roughly attached to the motor but it's quite firm. When I mount it on the screw it's going to be perfectly installed now is for testing purposes. ... snip Off hand, I would guess your PID and the VFD tuning are not playing well together. Either remove the LCNC PID and tune the VFD, or set the VFD to disable its PID and tune LinuxCNC. I have no experience with this but this is what comes to mind. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] More flexible handling for coordinate systems?
On 11/17/2013 12:42 PM, Philipp Burch wrote: Hello everyone, for some time now, I'm using LinuxCNC to control a dispenser to treat PCB panels (applying glue or globtop to electronic dies). Because not all of these panels are exactly aligned in the machine, a webcam sits on the Z joint using which I can get the real positions of fiducial marks on the panels. A python script then calculates a coordinate system offset and rotation from those positions and applies it to one of the G5x coordinate systems. This works OK. I would tend to not change the machine coordinate system or the kinematics. I see the problem more as not knowing where the target is rather than how to get to the target. One method might be to have a fixture with accurate key points. The PCB is mounted to the fixture then scanned to fix the target points relative to the key points. A g-code file is then created with the new target set, the fixture is mounted to the dispensing machine and the new g-code file run, repeat as needed. Or, use g-code moves to get the camera close to a target, invoke a scan routine to find the target (x, y, rotation), then g-code to dispense, repeat for all targets. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- DreamFactory - Open Source REST JSON Services for HTML5 Native Apps OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access Free app hosting. Or install the open source package on any LAMP server. Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! http://pubads.g.doubleclick.net/gampad/clk?id=63469471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] USB Camera for edge finder?
On 11/13/2013 02:11 AM, Jean-Michel Pouré - GOOZE wrote: Just a quick note in reply to my post that Hauppauge provides those recent cards: http://www.hauppauge.com/site/webstore2/webstore_impactvcb.asp?product=impactvcb The card has 3 to 4 input sources and digitalization is done in hardware, according to product description ... snip On the cards I have played with, the multiple inputs are actually multiplexed into a single channel so may limit the frame rate per input or have other effects. www.linuxsoft.cz/img/digi3/bt878_specs_sheet.pdf -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- DreamFactory - Open Source REST JSON Services for HTML5 Native Apps OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access Free app hosting. Or install the open source package on any LAMP server. Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! http://pubads.g.doubleclick.net/gampad/clk?id=63469471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BT878a PCI Video Capture Cards
On 11/14/2013 09:27 AM, Jean-Michel Pouré - GOOZE wrote: Le jeudi 14 novembre 2013 à 08:22 -0800, Kirk Wallace a écrit : On the cards I have played with, the multiple inputs are actually multiplexed into a single channel so may limit the frame rate per input or have other effects. www.linuxsoft.cz/img/digi3/bt878_specs_sheet.pdf Thanks! This is what I suspected. I renamed subject to avoid confusion with current discussion. What about this card: Connexant 878a - 4 x Chip http://www.camsecure.co.uk/CamsecureBT878aPCICard.html £54.98 is not bad if this is a real 4-way card. Do you think that we are getting 4 real inputs at normal frame rate? Kind regards, Jean-Michel ... snip It looks like this card has a chip for each channel, so is like having four separate video capture cards. It says that the overall frame rate is 120 frames pre second and 30 fps with four active channels. This makes me think the PCI interface is the limiting factor. Four separate cards may be faster. 30 fps should be fine for a security application, but may or may not be good for machine vision. This card also has BNC connectors rather than the more common RCA. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- DreamFactory - Open Source REST JSON Services for HTML5 Native Apps OAuth, Users, Roles, SQL, NoSQL, BLOB Storage and External API Access Free app hosting. Or install the open source package on any LAMP server. Sign up and see examples for AngularJS, jQuery, Sencha Touch and Native! http://pubads.g.doubleclick.net/gampad/clk?id=63469471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Something that bugs me
I was recently looking at task, which also looked like it had no source. After poking around a while, it looks like task, and likely halui, are made up from other files brought to gether by the local makefile. I think having a good understanding of the make system, which I don't possess, should reveal the secrets behind these non-source files. This is what I have found on making so far: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?MakefileDeMystified On 11/09/2013 01:02 AM, Gene Heskett wrote: Greetings; It appears that /usr/bin/halui has never been edited and rebuilt since a long time back. When the camview-emc stanza for [HALUI] is added to the ini file, I am getting a whole raft load of errors because halui can't find stuff it is apparently hard coded for, starting with the use of the emc naming convention. Is there a fix? Or, since I don't know where this file comes from, is it camview-emc's responsibility? Thanks. Cheers, Gene -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Controlling an infrared reflow oven using LinuxCNC
On 11/08/2013 02:38 PM, Jean-Michel Pouré - GOOZE wrote: Dear all, I need to know to what extend Linux CNC could be used to manage an infrared SMT reflow oven. Any ideas are welcome. Linuxcnc could handle your oven control. In my opinion the advantages would be: -Common, cheap, non-proprietary PC hardware -HAL system to connect hardware and software components -HALscope and HALmeter to monitor and troubleshoot -Possibly HAL mapping to document your configuration -Software and hardware signal generators that integrate well with HAL -Software PLC that integrates well with HAL, if that is your thing -GladeVCP or pyVCP for developing a custom user interface -Python interface if one is not strong in C -Network and remote monitor/control ready -Modbus ready -more that hasn't come to mind yet I would tend to consider what skills one already has and choose a solution that matches. If you know how to use hardware PLCs, then maybe a PLC should be the base of your system, but you might still need to fill in some of the points listed above. I like AVRs, but you would need to develop a system almost from scratch. Just my two bits worth. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] USB Camera for edge finder?
On 11/07/2013 03:15 AM, Russell Brown wrote: ... snip Has anyone found a USB camera with both a high magnification and a decent depth of field? (I've a feeling that these are mutually exclusive) or even one that can focus at a high resolution from a workable (~200mm?) distance? TIA In my opinion, you really don't want a long depth of field. The camera edge finder should be used like a normal finder or probe in that the sensitive area is basically a point. Once dialed in, that one point will be a constant. If anything changes, such as lens position to change focal length or zoom, the known fixed point will go away. Either that or a system will be needed to accommodate multiple points, which could get complicated in a hurry. Changing aperture should not be a problem if it doesn't change the lens position. My plan would be to use a standard USB camera with a fixed large aperture lens, mounted in a tool holder. The Z axis would be used to focus on the edge which, if the depth of field is narrow, will put the known point on the edge. The fixed lens could have any focal length, so the sensitive point could be at 50mm, 500mm or wherever you want. Finding or modifying a camera with a C-mount might be best. Camera resolution would not be important. There are many websites covering the modifying of webcams for use in astronomy. Such as: http://ghonis2.ho8.com/lifecam/lifecam1.html Tormach has a paper here: http://www.tormach.com/engineering_scanner.html and camera: http://www.tormach.com/product_cnc_scanner.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Scale ring engraving
On 11/01/2013 07:07 AM, Eric Keller wrote: On Fri, Nov 1, 2013 at 9:18 AM, andy pugh bodge...@gmail.com wrote: I don't understand? (Unless you are looking at the wrong scale?) I had to stare at that picture 3 times to see the scale on the top toolholder. Not sure how to solve your problem though ... snip I think the markings would be on the circumference of a cylinder, similar to this: http://home.scarlet.be/mini-draaien-frezen/images/07-draaitafel/puncher.jpg The scale lines should be easy. Engraving the numbers should be easy if a flat numeral is acceptable on the curved surface. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fanuc style offsets
On 11/01/2013 06:41 AM, Jeff Johnson wrote: I am wondering if anybody on the list is using the fanuc style offset patch? We are using it with Gscreen and it works great 90% of the time. There are times however that Linuxcnc will not recognize the tool with out re-applying the data or in extreme cases we have to make a whole new tool table and re enter all of the tool data for every tool. Any thoughts? We are using a system for lathe tools using a T word with the tool number and offset together in one number. I haven't had any trouble with it, so far. What user interface are you using? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Scale ring engraving
On 11/01/2013 07:35 AM, andy pugh wrote: On 1 November 2013 14:30, Kirk Wallace kwall...@wallacecompany.com wrote: http://home.scarlet.be/mini-draaien-frezen/images/07-draaitafel/puncher.jpg The scale lines should be easy. Engraving the numbers should be easy if a flat numeral is acceptable on the curved surface. Or, err, I could punch them Here is the rest of the project page: http://home.scarlet.be/mini-draaien-frezen/engels/project-07-6.html For engraving on a curved surface, I wonder if the surface compensation from the circuit board probing routine could be applied? From playing with the Hershey font in Gremlin, the characters are made up of a smallish number of straight lines and applying a curved Z compensation might be fairly easy. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Scale ring engraving
On 11/01/2013 07:57 AM, Kirk Wallace wrote: ... snip From playing with the Hershey font in Gremlin, the characters are made up of a smallish number of straight lines and applying a curved Z compensation might be fairly easy. In case someone might be interested, here is the file that has the font: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=lib/python/hershey.py I have added more characters which turned out to be fairly easy. I needed a circle for a diameter symbol and used this: http://wallacecompany.com/tmp/diameter_symbol.ods -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] rotary table .... has anyone tried this?
On 11/01/2013 08:22 AM, dave wrote: Hi all, I've often wondered how well a rotary table would work if driven by a reasonably stiff timing belt. Say 1 urethane with steel fibers. Gearing would be approx 5:1 and then a reducer if necessary to couple to the servo motor. Encoder would be mounted on an idler wheel driven by the 1 belt. I use a similar encoder setup on the Z axis of my mill and it seems to give rather good control at ~ 100K counts/inch. ;-) Has anyone tried this or something similar and what were the results. Stiff enough? Accurate enough? Of course everyone's definition of adequate is different but was it good enough to be usable? Many thanks in advance. Dave I haven't tried it, but this belt arrangement comes to mind: http://www.rockcliffcnc.com/SiteImages/CNC%20ROUTER%20BELT%20DRIVE%20ROCKCLIFF.jpg The picture above is similar to the mechanism I'm thinking of, which uses a rack with the form of the belt and the span between the pinion and the idler wheels is closed until they touch, or nearly so. The amount of belt involved is between where each idler touches the rack (with the belt in between) and where it touches the pinion. There should be very little flex. This should work as well with a pulley replacing the rack. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Left Coast Iron
Just in case someone is in the market: http://www.ebay.com/itm/330945298681 I would tend to make an offer under the BIN, and hope it hasn't been outside while on bid. This is an AN-S which is slightly larger than an ST-N: http://www.wallacecompany.com/machine_shop/Shizuoka/ I hope the screws are still there too. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60135031iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Delon Doubler
Andy, by the way, I tried a Delon doubler on a 240VAC 3ϕ VFD from 120VAC 1ϕ. I seem to recall the DC output was around 360VDC, but the VFD didn't seem to mind. I was hoping to try the Delon on 240VAC 1ϕ, but it seems the output would be around 720VDC, which would be significantly beyond the expected DC voltage for 440VAC class VFDs. More work needed. http://www.digikey.com/product-search/en?x=16KeyWords=493-8195 http://www.digikey.com/product-search/en?x=16keywords=FFPF20UP40S -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60135031iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Delon Doubler
On 10/21/2013 03:00 PM, Dave Cole wrote: The 24 volt transformers are called commonly called Buck/Boost transformers. Oftentimes used to boost 208 to 240 volts or buck 240 down to 208.. http://en.wikipedia.org/wiki/Buck%E2%80%93boost_transformer Dave ... snip Well the proof is in the putting. http://www.wallacecompany.com/tmp/img_1475-1a.jpg The transformer is rated 120VAC to 12@6A or 24@3A. I wired it to buck at 12V and got 300VDC on the Delon, which is the setup in the picture. The AC setting on the multimeter showed 2V, so there isn't much ripple. I also wired it to buck at 24V and got 280VDC. The VFD is a Mitsubishi U120 240VAC 400Watt unit. It is running a coolant pump at 60Hz here. The AC setting on the multimeter showed 2V, so there isn't much ripple. No drama, heat or noises on any of the bits. For fun, I wired this setup to boost at 24V and got 420VDC, which powered up my 440VAC VFD. I didn't run the motor because the VFD needed programming to run from the front panel. So, if one has a 240VAC VFD and only a 120VAC source, this might be a valid setup. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60135991iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Modbus VFD Adapter
I'm thinking about completing some work I did with AVRs and Modbus by making an adapter that has a Modbus port for a PC connection, with digital and analog IO for VFD control. This could allow one to add Modbus control to a VFD that normally only has keypad or button and potentiometer control. If there is any demand for such a thing, I could have some boards made, otherwise I'll just hack together a few for my needs. Another thought, there are cheap VFDs with Modbus that could be had for not much more than the adapter would cost. Any thoughts? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60134791iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Modbus VFD Adapter
On 10/03/2013 09:50 AM, Ricardo Moscoloni wrote: Hi Kirk, im interested in modbus control, in the past week i was working on controlling some delta vfd and servo drives (only non-rt processes like on/off, rpm set, reverse, warnings, alarm clear, status), do it with an usb/rs485 adapter from ebay (very cheap), and using mb2hal for interfacing with LCNC (have problems with the vdf as it is the cheap of the line and dont accept modbus fnct16 only fnct6). Some examples with mb2hal control an arduino mega, as a modbus I/O control. I don't like USB much for using with LinuxCNC. The VFD/Modbus components work well enough or can be modified easily enough to get what I need. Plus I don't know Ladder. Im interested, what is your intention with the AVRs adaptor? I have a few VFD's that I run three twisted pair to for FWD, REV, and speed PWM. With a micro controller I could get that plus monitor frequency, load, and other things with two pair. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60134791iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Is this feasible: BBB running LinuxCNC to Gecko G540 stepper driver
On 09/28/2013 05:38 AM, Charles Steinkuehler wrote: On 9/28/2013 4:45 AM, Richard Thornton wrote: Hi, I have seen a bunch of info on using BBB with capes and a lot of 3D printing specific stuff like Replicape and BeBoPr++. My thought was can the BBB replace the PC in LinuxCNC and drive the G540 directly? The gecko will happily work with 3.3V signals (as will just about anything designed to connect to a standard PC parallel port...they have all had 3.3V signaling for ages). So if you want, you can just hook up some wires from the BeagleBone connectors to a DB25, maybe using a prototype cape if you want to be fancy: http://www.adafruit.com/products/572 The bottom line is, that for some G540 inputs one only needs to turn on and off the LED in a LTV846 opto-coupler. http://www.wallacecompany.com/machine_shop/G540/G540_upper_bottom-2.jpg http://media.digikey.com/pdf/Data%20Sheets/Lite-On%20PDFs/LTV-8x6.pdf The forward voltage for the LTV is typically 1.2 V. there is a 200 Ohm resistor in series with the input which will also need to be considered. At 3.3 V, V=IR, I=V/R, I=(3.3 - 1.2)/200=0.0105 A= 10.5mA. It looks like 5mA should be enough to drive the LED, so if the BBB output can drive 10mA and survive, a direct connection should work. The charge pump signal is different. http://www.wallacecompany.com/machine_shop/G540/G540_upper_bottom_z-1b.png The input charges a capacitor and diode bridge which needs a lot more current and is more sensitive to voltage, frequency and duty. This shows a parallel port signal in 5 V SPP (low drive) mode, which doesn't work: http://www.wallacecompany.com/machine_shop/G540/g540_mb_spp.jpg Here it is in 5 V EPP (high drive) mode, which does work: http://www.wallacecompany.com/machine_shop/G540/g540_mb_spp.jpg This signal peaks at just over 3 Volts and takes its time getting there. The SPP signal peaks at 2 Volts. The situation gets more difficult when one considers the length and type of cable used. Noise can put significant + and - voltages on the signal, so reverse voltage protection, filtering, conditioning and termination will need to be considered. So direct connecting a BBB and a G540? ... It depends. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60133471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Is this feasible: BBB running LinuxCNC to Gecko G540 stepper driver
On 09/28/2013 08:30 AM, Gene Heskett wrote: On Saturday 28 September 2013 11:24:35 Kirk Wallace did opine: ... snip The input charges a capacitor and diode bridge which needs a lot more current and is more sensitive to voltage, frequency and duty. This shows a parallel port signal in 5 V SPP (low drive) mode, which doesn't work: http://www.wallacecompany.com/machine_shop/G540/g540_mb_spp.jpg Here it is in 5 V EPP (high drive) mode, which does work: http://www.wallacecompany.com/machine_shop/G540/g540_mb_spp.jpg Those 2 look identical because they are Kirk. :) ... snip Oops: http://www.wallacecompany.com/machine_shop/G540/g540_mb_epp.jpg -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60133471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] polyurethane resin casting
On 09/28/2013 10:03 PM, Gregg Eshelman wrote: ... snip To sorta on-topic this, one of the tasks I plan to put my mill to is making prototypes of things in metal to use as masters for RTV molds to make plastic castings. ... snip I may be a little biased, but this might be an option to resin molding. http://www.tormach.com/store/index.php?app=ecomns=prodshowref=32079 -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60133471iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wireless card problems
On 09/22/2013 06:33 AM, Eric Keller wrote: On Sun, Sep 22, 2013 at 8:21 AM, Mark Wendt wendt.m...@gmail.com wrote: Well, I'm in the market for a new wireless card or USB wireless. On a linuxcnc machine, I would go with a wireless bridge, aka access point. Discussions of this in the archives. This saves you from driver and latency issues. I just ordered one for my boss' home computer, hoping he can handle the configuration. ... snip I have wasted money on WiFi PCI, PCMCIA and USB cards that had drivers that didn't work with Linux. I've had the best luck with WRT54 class routers with OpenWRT. The cost is about the same as a WiFi card, especially considering the time saved in not having to flog dead horses. OpenWRT doesn't seem to be very active these days, but my routers have just worked for years. I'm hoping for a RPi like router to come along to fill the need for a 'cheap enough to use everywhere' WiFi device. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/22/13. http://pubads.g.doubleclick.net/gampad/clk?id=64545871iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wireless card problems
On 09/22/2013 08:14 AM, Mark Wendt wrote: ... snip Yabut... How well do those routers play with FIOS? ... snip I didn't know what FIOS was, so went searching. This looked interesting: http://www.freesoftwaremagazine.com/articles/liberating_verizon_fios_using_free_operating_systems This looks like one of those situations where these pond scum service providers try to to become the gate keeper of as much of of your life as possible. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/22/13. http://pubads.g.doubleclick.net/gampad/clk?id=64545871iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Beagle Video
In case someone might be interested, John has a video here: https://www.youtube.com/watch?v=6lMM-bSx6cc -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99! 1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint 2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13. http://pubads.g.doubleclick.net/gampad/clk?id=58041151iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] 3D Models from photos
On 09/12/2013 06:49 AM, Viesturs Lācis wrote: 2013/9/12 Kirk Wallace kwall...@wallacecompany.com On 09/12/2013 06:25 AM, andy pugh wrote: http://youtu.be/sGNesS8vo4M I am pretty impressed This will give the GGG machines something more than Yoda to print.:) What is GGG and Yoda? GGG = Glorified Glue Gun or 3D printer Yoda = http://www.thingiverse.com/thing:14104 http://en.wikipedia.org/wiki/Yoda I'm not really trying to make fun of 3D printers. I think they are at an awkward place in development. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- How ServiceNow helps IT people transform IT departments: 1. Consolidate legacy IT systems to a single system of record for IT 2. Standardize and globalize service processes across IT 3. Implement zero-touch automation to replace manual, redundant tasks http://pubads.g.doubleclick.net/gampad/clk?id=5127iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Seeking Motherboard Recommendations
On 09/11/2013 07:39 AM, Matt Shaver wrote: I might (hopefully) be doing a few new linuxcnc retrofit projects so I was wondering what everyone likes these days for motherboards. May basic requirements are: MiniITX Form Factor (1) PCI slot for a Mesa 5i25 (or alternatively a PCI-E slot for a 6i25) Predictable enough latency to avoid the dreaded real time error popups Cheap would also be nice :) I got a couple of these HP DC7900 computers recently: http://www.ebay.com/itm/300962992355 With idle=poll in grub, I have gotten 5000ns latencies. There might be a USFF form of this but they tend to not have any slots. Also, I have no idea if just having a Core 2 Duo will give these latency numbers. The DC7800 seems to have similar latencies. Also, any recommendations on touch screen setups that work with minimal hacking would be welcome as well! I have also been looking at these, but haven't bought one yet, so I'm not much help here. I'm tending towards having real buttons placed on the monitor perimeter instead. Thanks, Matt -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- How ServiceNow helps IT people transform IT departments: 1. Consolidate legacy IT systems to a single system of record for IT 2. Standardize and globalize service processes across IT 3. Implement zero-touch automation to replace manual, redundant tasks http://pubads.g.doubleclick.net/gampad/clk?id=5127iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/07/2013 03:52 AM, Mark Wendt wrote: On Fri, Sep 6, 2013 at 1:14 PM, Kirk Wallace kwall...@wallacecompany.comwrote: On 09/06/2013 10:05 AM, Kirk Wallace wrote: On 09/06/2013 09:32 AM, Mark Wendt wrote: ... snip You did say you were running VNC, correct? If so, check post #2 and #4. ... snip I installed tightvnc on the LinuxCNC PC. For fun, I tried running glxgears through VNC and it failed. Xlib: extension GLX missing on display :1.0 Error: couldn't get an RGB, Double-buffered visual This seems to have fixed it: sudo apt-get install libgl1-mesa-swx11 -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ Excellent! I figured it was missing libs or something like that. Mark ... snip libgl1-mesa-swx11 looks like it is the software version of OpenGL rendering and removes the hardware version, libgl1-mesa-glx. http://packages.debian.org/sid/libgl1-mesa-swx11 It may be that libgl1-mesa-glx is not compatible with a VCN link, or that VNC needs to be configured for my particular setup. I'm not sure how to approach the problem yet, or if it resides with the host or remote. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/07/2013 06:18 AM, John Prentice (FS) wrote: ... snip Can someone please help me understand how the hal_pru_generic driver/comp, called with a number of stepgens= and pwmgens=, ends up mapping the generated signals to hardware pins on the BBB headers (or chip)? Similarly how does the hal_bb_gpio mapping work? ... snip I grep'd gpio on the BBB in /home/linuxcnc/linuxcnc/configs/ARM/BeagleBone/BeBoPr-Bridge/* and got: http://www.wallacecompany.com/machine_shop/LinuxCNC/grep_gpio.txt I haven't taken any time to look at this yet, but maybe page 49 here might help: http://www.farnell.com/datasheets/1685587.pdf -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] BBB Laptop Screens?
Does anyone have thoughts on using an LCD screen from a laptop with a BBB? http://g3nius.org/lcd-controller/ -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BBB Laptop Screens?
On 09/07/2013 01:24 PM, Jon Elson wrote: Kirk Wallace wrote: Does anyone have thoughts on using an LCD screen from a laptop with a BBB? http://g3nius.org/lcd-controller/ If you are looking for a BIG project, and wan to learn how to code for FPGAs, jump right in! Note that the device you link to is standalone, it does not generate the signals for a computer to display on a monitor. All the LCD panels are just a bit different, although they often follow a pretty similar scheme. There are so many good (external) LCD panels on eBay now for low prices, there's no need to roll your won, unless you are essentially going to make a beagle-laptop. Jon ... snip I have been looking at 10 to 12 displays with HDMI input, which would be the cleanest setup, but they are more expensive than a 19. On the other hand, laptop displays could be had for free or almost free. The BBB seems to have an LCD port, which I haven't looked into yet. I was also considering hacking picture frames, but again have little information on these. Ideally, someone has already done all the work on one of these solutions, and I can just copy it. ;) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BBB Laptop Screens?
On 09/07/2013 01:40 PM, Florian Rist wrote: Hi Kirk Does anyone have thoughts on using an LCD screen from a laptop with a BBB? http://g3nius.org/lcd-controller/ AFAIK the Raspberry Pi features a LCD connector, so I should be possible to directly connect the panel to the PI. Not you cold remote control the BBB. Though this is a bit strange, it might be easier. Flo ... snip Part of the plan was to use a smallish LCD display for a manual mill HAL only DRO/spindle controller, which would need to be inexpensive to worth while. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BBB Laptop Screens?
On 09/07/2013 01:46 PM, Florian Rist wrote: ... forgot the easiest solution: There is a HDMI/LCD cape for the BBB: http://www.embest-tech.com/shop/product/beaglebone-hdmi-cape.html The panel directly connects to the cape - a adapter to change the pin-out might be necessary, though. Flo ... snip The BBB already has an HDMI port. I also found this HDMI to LVDS adapter: http://www.ebay.com/itm/370794816312 Now, I need to dig through my pile of junk laptops to find a good screen. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/05/2013 02:31 AM, Mark Wendt wrote: ... snip That's not a LinuxCNC/Axis error, that's an X error. There should be something in the X logs that point to the problem. Look in your home directory for the .xsession-errors file. Should say in there what parameter caused the X window to barf. ... snip Thank you for your reply Mark. So far this log is Greek to me: http://www.wallacecompany.com/machine_shop/LinuxCNC/xsession-errors If you happen to have a guess at the problem, please let me know. I will be looking at it. I also set this up with a regular PC and got the same result, so it is not just a BBB thing. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/06/2013 10:05 AM, Kirk Wallace wrote: On 09/06/2013 09:32 AM, Mark Wendt wrote: ... snip You did say you were running VNC, correct? If so, check post #2 and #4. ... snip I installed tightvnc on the LinuxCNC PC. For fun, I tried running glxgears through VNC and it failed. Xlib: extension GLX missing on display :1.0 Error: couldn't get an RGB, Double-buffered visual This seems to have fixed it: sudo apt-get install libgl1-mesa-swx11 -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/06/2013 09:32 AM, Mark Wendt wrote: ... snip You did say you were running VNC, correct? If so, check post #2 and #4. ... snip I installed tightvnc on the LinuxCNC PC. For fun, I tried running glxgears through VNC and it failed. Xlib: extension GLX missing on display :1.0 Error: couldn't get an RGB, Double-buffered visual -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/05/2013 02:31 AM, Mark Wendt wrote: On Wed, Sep 4, 2013 at 2:15 PM, Kirk Wallace kwall...@wallacecompany.comwrote: On 09/04/2013 09:56 AM, Kirk Wallace wrote: ... snip I tried AXIS but got: http://www.wallacecompany.com/machine_shop/LinuxCNC/Screenshot-3.png so I guess AXIS doesn't work with the BBB. Now, on to integrating real hardware. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ Kirk, That's not a LinuxCNC/Axis error, that's an X error. There should be something in the X logs that point to the problem. Look in your home directory for the .xsession-errors file. Should say in there what parameter caused the X window to barf. Mark ... snip I have some HDMI and USB bits on order, so I can hook up a monitor, keyboard, and mouse directly. The X problem will be put lower on on my list. It would be really nice to collect the nuggets of X wisdom as applied to LInuxCNC on the wiki somewhere. I have used xorg.conf to force X to give me what I need, but I'm sure there are much better ways to do this. On the other hand, rant on the best practices will probably change as soon as we get something that works. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Control refit options - best economical servo amp for this application?
On 09/05/2013 02:53 AM, andy pugh wrote: On 5 September 2013 08:11, Greg Bentzinger skullwo...@yahoo.com wrote: What he would like to do is replace the amps and control, re-using servos and existing limit switch wiring and power supplies. ... I will likely use one of the 5i25 combo's for I/O. I am considering showing him touchy but I have not used it myself as yet so it will be alot more extra homework for me. For DC servos I would either be looking at second-hand AMC drives from eBay/ New I would be looking at Granite Devices, or the properly dumb drives from Pico or Mesa. ... snip The Pico/Mesa amps have my vote. You can leverage the intelligence built into LinuxCNC, instead of trying to arbitrate between LinuxCNC and the intelligence in the drives. LinuxCNC should have no trouble utilizing tachometer, rotary encoder, or scale input, and you get to use HALscope for tuning. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/04/2013 09:19 AM, Charles Steinkuehler wrote: ... snip Git won't really help you recover a borked download. I've added the latest MachineKit file to my rsync server. To fix your bad file, put it somewhere and cd to that directory. Make sure the file is named: debian-7.1-machinekit-armhf-2013-09-02.tar.xz Then at a command prompt in the same directory as the file run the following (warning, line will wrap...everything below is one command): rsync -Pv mirrors.steinkuehler.net::machinekit/debian-7.1-machinekit-armhf-2013-09-02.tar.xz ... snip Crud, I have been exceedingly silly. I started my original download in my high rate time, then cancelled it to start it in the middle of the night, during my lower rate time. I failed to notice that the next download didn't overwrite the original file, but appended a .1 to a new one. From that point the CRC and untar was applied to the original. I renamed the second download and everything is wonderful. Sorry for the Red Herring. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/04/2013 08:44 AM, Charles Steinkuehler wrote: On 9/4/2013 10:29 AM, Kirk Wallace wrote: On 09/02/2013 05:24 PM, Charles Steinkuehler wrote: ... snip My blog page with the image download should have enough to get you going if you have some Linux experience and can figure out the device representing your SD card reader: http://bb-lcnc.blogspot.com/p/machinekit_16.html I tried installing the BBB image but I got a CRC and untar error after an hour's worth of downloading. I'm a little reluctant to try again. I pay $/GB so I would like to work out the download problem before trying again. Is there any way to download the image in smaller chunks and repair only the bits that break? I have not had any problems with the normal LinuxCNC LiveCD image download. How would the BBB image download be different? I could setup an rsync server that should let you update your local copy with minimal bandwidth usage. BitTorrent might work for this too, but I haven't tried resuming a failed http download with a torrent. Are you comfortable enough with rsync to use it if I setup the server side? I know very little about torrent and rsync but I can learn. I would hate to have you go through extra work just for my download. What about using Git? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/02/2013 05:24 PM, Charles Steinkuehler wrote: ... snip My blog page with the image download should have enough to get you going if you have some Linux experience and can figure out the device representing your SD card reader: http://bb-lcnc.blogspot.com/p/machinekit_16.html I tried installing the BBB image but I got a CRC and untar error after an hour's worth of downloading. I'm a little reluctant to try again. I pay $/GB so I would like to work out the download problem before trying again. Is there any way to download the image in smaller chunks and repair only the bits that break? I have not had any problems with the normal LinuxCNC LiveCD image download. How would the BBB image download be different? Thanks for any help. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Servo motor watts VS torque?
On 09/04/2013 06:25 PM, Gregg Eshelman wrote: ... snip That's why I'm concerned about the peak torque. The mill has a 10x50 table which is a large hunk of iron to push around and I don't want to end up with a real slowpoke of a machine. Ideally I'd like to have it performing quite a bit better. ... snip Speed comes from voltage, torque from current. In my opinion, I would not consider anything less than 90 volts at 10 amps, or 900 Watts, or 1.5 HP. Similar to: http://www.wallacecompany.com/machine_shop/bridgeport/00047-1a.jpg This is a 90V treadmill motor run by a Pico PWM input amp. If I were starting a new project I would consider a brushless DC motor, maybe with a Pico brushless amp: http://pico-systems.com/acservo.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58041391iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/02/2013 03:38 PM, Charles Steinkuehler wrote: I have a new version of the MachineKit image for running LinuxCNC on a BeagleBone available: Image: http://bb-lcnc.blogspot.com/p/machinekit_16.html Announcement: http://bb-lcnc.blogspot.com/2013/09/new-machinekit-image-available.html This is a fairly significant change from the previous versions, as I am now building the kernel fully from source (pulling in the required Xenomai code from git) and I have switched to the unified-build-candidate branch of LinuxCNC (which is going to become 2.6?). Anyway, if anyone has an interest in playing with LinuxCNC on the BeagleBone give it a whirl and let me know how it works for you. It moves motors for me, but I have made enough changes I'd like as much testing as possible. My BBB should be here tomorrow or the next day. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] BeagleBone Image Available
On 09/02/2013 03:38 PM, Charles Steinkuehler wrote: I have a new version of the MachineKit image for running LinuxCNC on a BeagleBone available: Image: http://bb-lcnc.blogspot.com/p/machinekit_16.html Announcement: http://bb-lcnc.blogspot.com/2013/09/new-machinekit-image-available.html This is a fairly significant change from the previous versions, as I am now building the kernel fully from source (pulling in the required Xenomai code from git) and I have switched to the unified-build-candidate branch of LinuxCNC (which is going to become 2.6?). Anyway, if anyone has an interest in playing with LinuxCNC on the BeagleBone give it a whirl and let me know how it works for you. It moves motors for me, but I have made enough changes I'd like as much testing as possible. Thanks! Is there a brain dead install document or a list of things one would need to learn to do an installation? The wiki pages look like they were last updated in March? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] MTConnect
On 08/30/2013 09:38 AM, Marius Liebenberg wrote: Could you find a link to the source code? http://www.mtconnect.org/downloads/download-information/source-code-and-binaries-download.aspx I think the trick is to scroll down the page to the Login Form. At the bottom of the Login Form is No account yet?. Click Register, then fill in a username, password and e-mail address. Once you have your account set up, log in with the Login Form, then go to: https://github.com/mtconnect Or maybe try the git hub link first to see what happens. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] MTConnect
Is MTConnect something worth learning more about? Has anyone used it with LinuxCNC? http://www.amit-deshpande.com/2008/06/mtconnect-live.html -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! http://pubads.g.doubleclick.net/gampad/clk?id=58040911iu=/4140/ostg.clktrk ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] sem motors
On 08/13/2013 03:22 AM, Sven Wesley wrote: ... snip These are my favorites since many years. You can get them at Digikey for cheap. http://cncdrive.com/AMT103.html ... snip At one time these encoders were known to have a latency issue. I'm not sure what the current status is. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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://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] Tapping G code
On 08/13/2013 09:00 AM, Viesturs Lācis wrote: 2013/8/13 John Thornton bjt...@gmail.com When tapping in steel it is only necessary to have %50 thread depth and %75 thread depth in soft materials. Do you mean it to have tapped 50% / 75% of hole's depth or do you mean increasing the initial drill size so that height of actual thread profile is 50% / 75% of the standard (theoretical) thread profile height? From Wikipedia --- Thread depth Screw threads are almost never made perfectly sharp (no truncation at the crest or root), but instead are truncated, yielding a final thread depth that can be expressed as a fraction of the pitch value. The UTS and ISO standards codify the amount of truncation, including tolerance ranges. A perfectly sharp 60° V-thread will have a depth of thread (height from root to crest) equal to .866 of the pitch. This fact is intrinsic to the geometry of an equilateral triangle—a direct result of the basic trigonometric functions. It is independent of measurement units (inch vs mm). However, UTS and ISO threads are not sharp threads. The major and minor diameters delimit truncations on either side of the sharp V, typically about one eighth of the pitch (expressed with the notation 1/8p or .125p), although the actual geometry definition has more variables than that. This means that a full (100%) UTS or ISO thread has a height of around .65p. Threads can be (and often are) truncated a bit more, yielding thread depths of 60% to 75% of the .65p value. This makes the thread-cutting easier (yielding shorter cycle times and longer tap and die life) without a large sacrifice in thread strength. The increased truncation is quantified by the percentage of thread that it leaves in place, where the nominal full thread (where depth is about .65p) is considered 100%. For most applications, 60% to 75% threads are used. To truncate the threads below 100% of nominal, different techniques are used for male and female threads. For male threads, the bar stock is turned down somewhat before thread cutting, so that the major diameter is reduced. Likewise, for female threads the stock material is drilled with a slightly larger tap drill, increasing the minor diameter. (The pitch diameter is not affected by these operations, which are only varying the major or minor diameters.) This balancing of truncation versus thread strength is similar to many engineering decisions involving material strength, material cost and weight, and manufacturing cost. Engineers use a number called the safety factor to quantify the increased material thicknesses or other dimension beyond the minimum required for the estimated loads on a mechanical part. Increasing the safety factor generally increases the cost of manufacture and decreases the likelihood of a failure. So the safety factor is often the focus of a business management decision when a mechanical product's cost impacts business performance and failure of the product could jeopardize human life or company reputation. For example, aerospace contractors are particularly rigorous in the analysis and implementation of safety factors, given the incredible damage that failure could do (crashed aircraft or rockets). Material thickness affects not only the cost of manufacture, but also the device's weight and therefore the cost (in fuel) to lift that weight into the sky (or orbit). The cost of failure and the cost of manufacture are both extremely high. Thus the safety factor dramatically impacts company fortunes and is often worth the additional engineering expense required for detailed analysis and implementation. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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://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] sem motors
On 08/12/2013 07:14 PM, Terry Christophersen wrote: Hi all, I am reretrofitting a bridgeport that I use for second operations.It has 250 line encoders now. I would like to upgrade these encoders to say 500 or 1000 line I save money by using my time to build encoders from disks and sensors: http://www.usdigital.com/products/encoders/incremental/rotary/disks/DISK-2 http://www.usdigital.com/products/encoders/incremental/modules/EM1 http://www.wallacecompany.com/cnc_lathe/HNC/6-1a.jpg In my opinion, I'd keep the 2:1 pulley, which allows slight misalignment, but maintains torsional stiffness with constant friction. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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://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] Anyone on the list in Idaho or east Oregon?
On 08/08/2013 07:43 AM, Ray Debs wrote: I lived in Boise until about a year ago, and now live in Gig Harbor, WA (near Seattle). Still have the house and hangar there and visit pretty often. I wish I had known about the others on the list who are in the area. The Lasersaur community has a map people add themselves to so we can see where our fellow builders are. That would be a nice addition for LinuxCNC. Ray Debs ... snip http://www.linuxcnc.org/index.php/english/linuxcnc-user-map One must log in to see the map. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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://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] Planning phase for new machine, need decision support
On 08/06/2013 08:17 AM, Stephen Dubovsky wrote: On Tue, Aug 6, 2013 at 9:41 AM, dave dengv...@charter.net wrote: Too early in the morning and still on first cup of coffee but: if you are within the 1/4 step (null) then increased feedback of some kind won't fix it. It does fix it. The feedback will cause the control loop to shift the commanded position away so that you ARE on the upslope of the torque curve. Its fundamentally how servos work. You need to develop Q(quadrature) current(flux) to get torque. The D(direct) current doesn't do any work. Technically, once you have feedback in a stepper system you can fully servo it and not require any 'holding current' if the application doesn't currently demand it. The fixed current most stepper drivers use is only because they don't know where they are in the DQ frame. So they provide a ton of D and shaft error shifts the angle to produce some Q. With much study, a fair amount of work and money, one 'could' get a stepper to act like a servo (except for the rapid torque fall-off at higher speeds, and resonance zones within the operating RPM range). But why bother when a real servo acts just like a servo? In my opinion, steppers fill a need for lower cost, and simplicity. If one needs to add complexity or cost to a stepper to get it to work, just use a servo. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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://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] Got a motor, now I need controls.
On 08/05/2013 01:22 PM, Gregg Eshelman wrote: I took another look at the Y axis motor on my Acra, it's a MT30M4-59. (The 9 was hard to see.) I searched eBay and found this http://www.ebay.com/itm/161076323614 with about 40 minutes to go. Snagged it for $199.99, free shipping. All the label data matches the motor on the mill http://www.sem.co.uk/fileadmin/data/file/MT_Technical_Data_Manual.pdf Now I need three servo amps suitable for those motors and a Baldor FMDB-00. What I have are two Fenner SD 5-12 boards, which right now I can't find any exactly the same. ... snip Jon's PWM DC amps come to mind: http://pico-systems.com/pwmservo.html You will need a hardware PWM generator, such as Jon's servo controller: http://pico-systems.com/univpwm.html Mesa also has similar solutions. http://mesanet.com/fpgacardinfo.html You will also need to close the feedback loop in LinuxCNC. I don't recall anyone using a tachometer signal with LinuxCNC, but I can't see that it would be too difficult. A quadrature encoder would also work. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] slow speed stepping - am I missing something?
On 08/05/2013 11:38 AM, John Alexander Stewart wrote: ... snip This is a little Seig KX1 that I got with steppers but without the electronics - 5i25, g540, 48v switching power supply have been added. I do everything in metric. I'll be able to get to the machine in a couple of hours and try changing the dirhold, etc parameters up by a bit, as outlined by Andy, Gene, et al. and will report back findings. Thanks everyone; John A. Stewart. ...snip Can you get single steps to move the motor? I would try marking the motor shaft or pulley, then single step and check that the angle between each step is the same for all steps. You might try this with the driver with micro-stepping On and Off. If you haven't already checked, use a meter to check that the 'A' wire pair don't have continuity with the 'B' pair. In other words, check that the motor is wired for bi-polar use rather than uni-polar. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Got a motor, now I need controls.
On 08/05/2013 03:37 PM, andy pugh wrote: On 5 August 2013 21:22, Gregg Eshelman g_ala...@yahoo.com wrote: Now I need three servo amps suitable for those motors and a Baldor FMDB-00. Mesa 7i29? Or are you wed to the idea of Parallel port control? In my opinion, a parallel port/software PWM signal generator is too slow. To get a decent frequency, one is limited to two or three bits of resolution, or more bits at a much lower frequency. It seems marginal even for a VFD speed input. Why bother with a parallel port when there are inexpensive FPGA generators with tons of bandwidth available? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Equivalent replacements for these old servos?
On 08/02/2013 11:46 PM, Gregg Eshelman wrote: On Fri, 8/2/13, Kirk Wallace kwall...@wallacecompany.com wrote: Now, if a machine is being used used to put one's kids through college, I would agree that spending a few buckets of money on known-good hardware and saving downtime may make a lot more sense. -- No kids here. In that case, I would tend to just get what you have on hand to work. A lot can be done with a breadboard and a PCI parallel port card. http://www.wallacecompany.com/machine_shop/Shizuoka/00011-1a.jpg http://www.wallacecompany.com/machine_shop/Shizuoka/00012-1a.jpg http://www.wallacecompany.com/machine_shop/Shizuoka/mpg_proto-1a.jpg My guess is that little of this work will be undone or wasted. I went from decommissioning the Bandit to three moving axes, shown in the first two pictures, in a day. I could have started making chips by operating the spindle manually. Something else about this mill, it has cogged belts for speed reduction on all three axes. I haven't had time since bringing it home to start taking things apart. Was an over 600 mile round trip to get it. When do we get to see pictures? Will be at a sci-fi/anime/horror/etc convention in Nampa, ID all this weekend. Haven't missed it since its first year in 2004. ;-) This is my annual three day vacation from everything. In Idaho? I thought we Californians were known for our fruits and nuts. :) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Equivalent replacements for these old servos?
On 08/02/2013 03:08 PM, Greg Bentzinger wrote: It is often uncomfortable to pay too much ( or what you may preceive as too much ) but it is usually far worse to not pay enough. A real DC servo, and a 4 brush more specifically will turn smoothly with as little as the power supplied by a single D cell battery with no visual or audio signs of cogging. Try this on a treadmill motor and it will be a big eye opener. That big ol fan unit which is usually mounted on the tread mill motor shaft serves double duty as a flywheel to soften this cogging, also the cogging is lessoned by the reduction belt drive, the belts help damp out the vibration. I'll agree that a cog free motor is more desirable, but with a feedback controlled motor, there seems to be very little advantage. For the difference in cost, I've found that cog-rich treadmill motors work pretty well. I think putting the savings into getting rid of backlash is more important. I could be convinced to change my opinion, but so far I haven't been. I like those Mitsubishi units Andy linked to - but Buyer beware - There are servos, and there are sever duty servos - you need a good sealed unit that can handle running in coolant if the servo is mounted in an area subject to chips and coolant. A prime example would be the motor used for a 4th axis sitting on a mill table. That unit will get practically submerged in some cases when run in a common VMC type machine. A treadmill motor could be well protected by using a full enclosure: http://www.wallacecompany.com/machine_shop/bridgeport/00047-1a.jpg I made the above table end plate large enough to fit a box over the motor, encoder, et al. (This was a jury rig. If I ever build it for real, the encoder would go on the screw end, and the motor fitted with billet end caps and bearings upgraded.) Now, if a machine is being used used to put one's kids through college, I would agree that spending a few buckets of money on known-good hardware and saving downtime may make a lot more sense. Cost Time \ / | Quality -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Equivalent replacements for these old servos?
On 08/02/2013 05:18 PM, Dave wrote: Kirk, Where can you buy treadmill motors anymore? They used to be widely available in the US but the supply seems to have dried up. Dave For quite a while they have been scarce or expensive on eBay. It seemed they were quite a fad with the DIY wind generator crowd, but I did a search today and there are quite a few motors available. With a bit of shopping around, I think there may be some good deals. I never really thought they would make very good generators, maybe people are finding that out. DIY alternators make a lot more sense to me. http://www.scoraigwind.com/pmgbooklet/itpmg.pdf -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Equivalent replacements for these old servos?
On 08/01/2013 04:02 PM, Gregg Eshelman wrote: Finally have the old Acra mill home where I can have a look at the system and see what it has and what it needs. The Z axis has a Baldor (Anilam labled) FMDB-00 and the Y axis has a Miltronics (also Anilam labled) MT30M4-5. There's no X axis motor but I assume it would have been the same as the Y axis. ... snip I would tend to look at a 90 VDC brushed treadmill motor and refit it with better bearings and custom end housings. Using the glass scales can present tuning problems, even with low backlash, let alone with single nut ball screws or a worn machine. A good set up would be to use the scales for positional feedback, then fit rotary encoders to the motors for velocity feedback. http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Combining_Two_Feedback_Devices_On_One_Axis Otherwise, I'm partial to fitting just a rotary encoder to the ball screw with a belt to the motor, which is a compromise between positional and motor motion feedback. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Controlling a tool changer
On 07/27/2013 11:48 PM, Sven Wesley wrote: 2013/7/28 Kirk Wallace kwall...@wallacecompany.com snip.. After some testing, I decided I wanted to optionally use my MPG to manually control the carousel, but I ran into some problems and that's were the project has been for over a year now. Karl kept his changer alone and wrote a comp to get his to work with LinuxCNC as-is. http://www.wallacecompany.com/machine_shop/Shizuoka/qd_atc_hal_ov-1a.svg http://www.wallacecompany.com/machine_shop/Shizuoka/qdtoolchange.comp Sweet Kirk! That's exactly what I was looking for! i only did a quick scan of the source code, it looks like he's moving the changer on step at the time until he comes to the right position. One idea I had was to let an Arduino board handle the mechanism (like Karl's ATC board) and then just tell it either how many steps to go or which tool position it should go to and let it handle that. Is it possible to make communication output sending textual commands with the Mesa boards? It's C after all, I could optionally send commands on the serial port... /Sven ... snip I would tend to use the serial port and Modbus/RTU, (or Ethernet and Modbus, but I have not tried it yet) http://wiki.linuxcnc.org/cgi-bin/wiki.pl?AVR (See bottom of page) http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ModbusToHal http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ModIO (PIC example) I don't know enough about Mesa boards to be of much help. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Controlling a tool changer
On 07/27/2013 01:16 AM, Sven Wesley wrote: ... snip I've been trying to find documentation how to make a tool change happen. ... snip I just added some information to my Shizuoka page covering the last work I did on the tool changer. It is in the last third of the page: http://www.wallacecompany.com/machine_shop/Shizuoka/ The work is not complete. I also have the some pages from the Bandit/QuickDraw manual in a sub-directory. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Controlling a tool changer
On 07/27/2013 10:37 AM, Don Stanley wrote: Hi Kirk; Very interested in what you were doing with your tool changer. I could not see how it was interacting with the spindle. Did I miss something in the video, or is that yet to be determined? I am interested in that part also. Thanks Don ... snip There is an arm with a gripper that moves the tool from the spindle to the carousel, then grabs a new tool and moves it to the spindle. This was on the mill when I bought it and is made by Summit/Dana. http://www.wallacecompany.com/machine_shop/Shizuoka/atc_manual/bandit_changer-0001.png There is a control board in the changer that handles each function (tool in, tool out, etcetera) and is activated by shorting one of the command wires to common. This makes it easy to interface to LinuxCNC. http://www.wallacecompany.com/machine_shop/Shizuoka/atc_manual/bandit_changer-0027.png I didn't like the Geneva drive that rotates the carousel so I replaced it with a DC gear-motor, http://www.wallacecompany.com/machine_shop/Shizuoka/100_1136-1a.jpg and encoder, http://www.wallacecompany.com/machine_shop/Shizuoka/100_1133-1a.JPG and added a limit and PID component to control the motion. http://www.wallacecompany.com/machine_shop/Shizuoka/Carousel_Overview-1a.png After some testing, I decided I wanted to optionally use my MPG to manually control the carousel, but I ran into some problems and that's were the project has been for over a year now. Karl kept his changer alone and wrote a comp to get his to work with LinuxCNC as-is. http://www.wallacecompany.com/machine_shop/Shizuoka/qd_atc_hal_ov-1a.svg http://www.wallacecompany.com/machine_shop/Shizuoka/qdtoolchange.comp -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Controlling a tool changer
On 07/27/2013 06:26 PM, Gregg Eshelman wrote: On 2013/07/27 04:52 PM, Kirk Wallace wrote: I just added some information to my Shizuoka page covering the last work I did on the tool changer. It is in the last third of the page: http://www.wallacecompany.com/machine_shop/Shizuoka/ The work is not complete. It stores the tools upside down then flips them upright? No chance of the tools falling off the chain... ... snip The tools do rock a bit but it's very unlikely they could fall out once they are in the pocket. The pocket needs to be aligned with the arm's gripper within maybe +/- .030 or else the tool holder will bind on the way in or out of the pocket. The chain could have forks instead of pockets and hold CAT tool holders. Then the tools would not need to be flipped, but the arm would need to be more complex. The current arm has gearing that rotates the wrist and cam slots for Z movement as the arm sweeps to or from the spindle and tool box. Gearing also operates the tool box door. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Delta Electronics VFD and Modbus
On 07/25/2013 07:55 AM, propcoder wrote: Thanks. Will it make influence for my linuxcnc? I don't want anything else, just to control VFD-B using modbus with this component. Or is it impossible? On 2013.07.25 17:08, Yishin Li wrote: For compiling our code, please refer to http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ArtekBranch Yishin I recall starting by installing libmodbus on a non-LinuxCNC PC and looking at the example test files. https://github.com/stephane/libmodbus/tree/master/tests From these I created a very small test file that only sent a device ID request command to my VFD. This allowed me to get the serial connection and VFD sorted out. (Actually, before that I assembled Modbus packets manually and sent them out the serial port, without using libmodbus) -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Delta Electronics VFD and Modbus
On 07/24/2013 07:25 AM, propcoder wrote: I am planning to control Delta VFD-B using RS232 to RS485 converter and LinuxCNC, Modbus. Manual of the drive: http://www.delta.com.tw/product/em/drive/ac_motor/download/manual/VFD-B_manual_en.pdf I feel cold when coming near to Ladder logic (I am an IT specialist, programmer). Maybe I will learn it one day and feel as comfortable as programming in C.. So I was thinking starting from http://wiki.linuxcnc.org/cgi-bin/wiki.pl?VFD_Modbus. BTW, which of these methods would be lighter on CPU recources? Maybe someone went this way already and could share some sources, configs? ... snip The wiki page above is pretty old and I think libmodbus and the LinuxCNC packaging has had a few revisions that might not be compatible with some of the information on that wiki page. It should be better than nothing. I seem to recall that someone has made a generic style Modbus component, but I know very little about it. There would need to be a way to set register address space and map functions to each address. Some interesting work has been done, but the authors haven't published their work, nudge nudge. I started a three component system that had a HAL to Modbus, Modbus to hardware, and a communication controller. This was supposed to handle multiple serial ports and Modbus devices. I got it mostly working, but has been stalled for a couple of years. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Pluto-p board question
On 07/12/2013 05:03 AM, W. Martinjak wrote: h, are there no unused pluto-p boards on the shelves? I'm wondering. ... snip Mine is on a shelf somewhere. I just don't recall where the shelf is. If you _really_ need a Pluto-P. I can make an effort to look. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Shizuoka on eBay
On 07/06/2013 02:19 AM, Gregg Eshelman wrote: ... snip While I don't need to add a new project at this time this does peak my interest, but it brings up some questions. What type of capabilities can we expect to get by retrofitting one of these older NC machines? ... snip For my Shizuoka and HNC, they are now just as accurate as they were before the conversion. These industrial CNC's tend to age much better than the consumer grade machines like my Bridgeport, or most mini machines, which seem to need rework even when new. Incorporating tool changers, coolant, collet closers, and other systems is usually straight forward if one has a good handle on electronics and writing software or can hire talent. So, in my opinion, a converted machine should work just as well as the original. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] Shizuoka on eBay
In case someone forgot to buy this: http://www.ebay.com/itm/290928102085 This one is a little larger than my ST-N. It should be around 4,000 lbs. The seller should be able to help with arranging shipping. It looks like it has servos and resolvers, but mine has steppers, so I don't know for sure. Just add a PC and some interface hardware to the existing drivers and power supplies. There is a tool changer, but it looks like the arm may be missing or doesn't show up in the pictures. The spindle nose looks pretty rough. I don't know why it has threads on the OD. If one has the space, this could be cheaper and easier than converting a cheap new mini mill. Make an offer, and maybe get it cheaper. I have no connection to the seller. I just have a soft spot for Shizuokas -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] 6i25 StepGen
I need to output quadrature stepping from a 6i25. Do I have any options in this regard, other than bit banging or external circuitry? Thank you. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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] 6i25 StepGen
On 07/05/2013 05:13 PM, andy pugh wrote: On 6 July 2013 00:29, Kirk Wallace kwall...@wallacecompany.com wrote: I need to output quadrature stepping from a 6i25. Do you mean 6i25? There are many 6i25 firmwares that output step pulses, those are always FPGA-sourced rather than daughterboard sourced. The standard 7i76 firmware will be stepping furiously on the pins described in dmesg. Hello Andy. I have a 6i25 without any daughter boards. I want to use it to provide A, B, and Z signals to test an encoder input circuit. When I looked at the Hostmot2 Stepgen, step/dir was the only output type. The software Stepgen component has a wide range of output types, but is too slow. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/ -- 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
