Re: [Emc-users] odd PID tuning problem
Jake Anderson wrote: Currently I am running a P of ~3 D of .01 FF1 0 FF2 .03 FF2 .0001 Why is the P term so low? Can you raise it? I know the Mesa is different from my boards, but I use P values from 50 to 4000 or so. I think this is the real reason you have different error at different speed. Jon -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] odd PID tuning problem
On 9 July 2010 17:47, Jon Elson el...@pico-systems.com wrote: Why is the P term so low? Perhaps his error is in mm? -- atp -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] odd PID tuning problem
On Fri, 2010-07-09 at 11:47 -0500, Jon Elson wrote: Jake Anderson wrote: Currently I am running a P of ~3 D of .01 FF1 0 FF2 .03 FF2 .0001 Why is the P term so low? Can you raise it? I know the Mesa is different from my boards, but I use P values from 50 to 4000 or so. I think this is the real reason you have different error at different speed. Jon Hi Jake, My Z axis on a cinci contourmaster (BP sized) mill is as follows; 5i20- 7i33 - 1525BR Servo Dynamics amp in torque mode - Keling KL-34-180-90 - 2:1 - 10 mm ball screw. P = 600 I = 1000 D = 1.3 FF0 = 0 FF1 = 0 FF2 = 0 This gives decent but not phenomenal following error. ~ 0.0005. When I tried running the amp at max (7 A) it screamed at me. I only got stability when I backed off the current. It will still do 80 ipm so no problem. I should revisit the Z tuning with the idea of raising the P some more. I initially tried tuning with large FF1 values but as I decreased it the following error got progressively better. There is almost no difference between FF1 = -0.03 and 0.0 so I left it at zero. Dave -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ClassicLadder : sequential editor problem/bug
Hi Chris I finally managed to get my grafcet working, thanks to the link you mentionned. It sound stupid, but... nowhere in the doc nor anywhere there is the info that grafcet steps are related to %X1 %X2 etc variables to acces them with the ladder ! This saved my week of work :) :) I'm preparing a more detailled email on how my stuff work, and with the bugs I pointed out with the editor and the interpreter. Also a special thank to Dave for his so detailled email that also saved me lost of reading and head-scratching. a preview of the final grafcet I use : http://imagebin.ca/view/CNXk0nbd.html (not exactly the last one but looks the same.) Yann Chris Morley wrote: Dave wrote: (snip) -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ClassicLadder : sequential editor problem/bug
I finally managed to get my grafcet working, thanks to the link you mentionned. It sound stupid, but... nowhere in the doc nor anywhere there is the info that grafcet steps are related to %X1 %X2 etc variables to acces them with the ladder ! This saved my week of work :) :) actually the integrators manual does : last paragraph: http://www.linuxcnc.org/docs/devel/html/ladder_classic_ladder.html#r1_9 I'm preparing a more detailled email on how my stuff work, and with the bugs I pointed out with the editor and the interpreter. Please consider adding to the clasicladder example wiki page when your done. Grafcet is not documented well because not many use it. (like ummm just you) If you could write a bit for the manual that would be great too. You could send it ti John Thorton or I to integrate it in the manual. hay even point form notes would be a good starting point. I will try to work on any glaring bugs. a preview of the final grafcet I use : http://imagebin.ca/view/CNXk0nbd.html (not exactly the last one but looks the same.) Yann Wow that looks impressive! can't wait for the explanation. Chris M _ Learn more ways to connect with your buddies now http://go.microsoft.com/?linkid=9734388 -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] DRO for a KING PDM-30 Milling/Drilling Machine
Hello All, I have a question that I thought that I would bounce off everyone in this forum regarding a DRO project for my KING PDM-30 Milling/Drilling Machine. I know that this is an EMC forum but with the varied level of expertise on the forum I wanted to try my luck. SO my question is has anyone ventured into such a project and if so any recommendations on the kit or components that would recommend. I was hoping to get something for the particular mill I have but I dont mind buying individual components to save money. Any feedback experiences link would greatly be appreciated. Thanks, Shaffin. -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] DRO for a KING PDM-30 Milling/Drilling Machine
On Fri, 2010-07-09 at 17:49 -0400, Shaffin Bhanji wrote: Hello All, I have a question that I thought that I would bounce off everyone in this forum regarding a DRO project for my KING PDM-30 Milling/Drilling Machine. I know that this is an EMC forum but with the varied level of expertise on the forum I wanted to try my luck. SO my question is has anyone ventured into such a project and if so any recommendations on the kit or components that would recommend. I was hoping to get something for the particular mill I have but I dont mind buying individual components to save money. Any feedback experiences link would greatly be appreciated. Thanks, Shaffin. I am currently using EMC2 as a DRO on my Bridgeport mill: http://www.wallacecompany.com/machine_shop/EMC2/dro_vfd/ http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?PyVCP -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Mitsubishi DC servo motors
Andy thanks for the tip, fortunate the problem was solved with only a few dolars, but I'll keep looking for information about any possible driver for my DC motors. Just in case. Thanks for your help!. Regards. Leonardo. 2010/7/5 Andy Pugh a...@andypugh.fsnet.co.uk On 5 July 2010 20:03, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: The only thing that i have doubts is about the servo motors in the two axis, because if they are one phase brushed DC motors, it would be very easy to adapt them to use it with emc2. I believe that there are ways to use almost any form of servo motor at all with EMC2. Brushed DC motors are particularly easy, but EMC can control any form of drive that accepts a PWM or analogue voltage input. -- atp -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Upgrade 2.3.? Live Disk to 2.4.2 Won't run.
Hi All; The first complaint in the EMC2 Terminated Print file is: libnml/buffer/physmem.cc 143: PHYSMEM_HANDLE: Can't write 10748 Bytes at offset 60 from buffer of size 10208. libnml/cms/cms_in.cc 1383: cms: (cmsStatus) Error writing 10748 bytes to global memory at offset 81F8CC0 (See libnml/cms/cms_in.cc 1383. ) (THIS WAS REPEATED ABOUT FIFTEEN TIMES). The second complaint may be a result of the first: waiting for s. axis (THIS WAS REPEATED A FEW HUNDRED TIMES). The computer is a 1.8 GHZ Intel with 512 MB RAM (511 shown on boot up). QUESTIONS: 1- Does this have a quick fix; or should I reload the 2.3.? live disk? 2- How should I include the 'EMC2 Terminated Print file' without retyping, in the future? Thanks Don -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] odd PID tuning problem
Andy Pugh wrote: On 9 July 2010 17:47, Jon Elson el...@pico-systems.com wrote: Why is the P term so low? Perhaps his error is in mm? Yes, sure, that would scale it down by 25.4, but 3 still seems to be VERY low. Jon -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Upgrade 2.3.? Live Disk to 2.4.2 Won't run.
Don Stanley wrote: Hi All; The first complaint in the EMC2 Terminated Print file is: libnml/buffer/physmem.cc 143: PHYSMEM_HANDLE: Can't write 10748 Bytes at offset 60 from buffer of size 10208. libnml/cms/cms_in.cc 1383: cms: (cmsStatus) Error writing 10748 bytes to global memory at offset 81F8CC0 This sounds like the problem where you need to comment out the line that says : NML_FILE = emc.nml in your .ini file (assuming you have not customized that file) See section 1.1 of http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UPDATING for a little more info. Jon -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] ClassicLadder : sequential editor problem/bug
Hi Yann, I'm very glad to hear that you were able to get Grafcet to work. I think you have inspired me to give it a try also. That looks similar to the sequential function charts that I have used before, but with less detail. Using a Grafcet chart or charts, along with some ladder logic files might be an improvement vs using strictly ladder logic. I'm looking forward to your write up as well! :-) Dave On 7/9/2010 3:03 PM, yann jautard wrote: Hi Chris I finally managed to get my grafcet working, thanks to the link you mentionned. It sound stupid, but... nowhere in the doc nor anywhere there is the info that grafcet steps are related to %X1 %X2 etc variables to acces them with the ladder ! This saved my week of work :) :) I'm preparing a more detailled email on how my stuff work, and with the bugs I pointed out with the editor and the interpreter. Also a special thank to Dave for his so detailled email that also saved me lost of reading and head-scratching. a preview of the final grafcet I use : http://imagebin.ca/view/CNXk0nbd.html (not exactly the last one but looks the same.) Yann Chris Morley wrote: Dave wrote: (snip) -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
