For anyone wanting to try emc2, a new package has been uploaded to the repository at ourproject.org. A small change to the main EMC package has hopefully avoided any conflicts with emc2 and thus removes one bone of contention. Regards, Paul.
I am running BDI 4.38 with Jon's PPMC cards and a Bostomatic mill. Today running a Meshcam file to do some engraving in wood the EMC would just stop like it was paused. The spindle didn't stop it just stopped progressing through the file. I tried "resume" and nothing happened but when I tried "step" it would proceed on and then "resume" would work. This happened many times over several hours. Sometimes only a few (5 or less) min. between events other times like 20 min. The machine reported NO errors when this would happen, and the comand it had just executed and was about to execute were normal moves line G1s. sometimes single axis other times multiple axis (no stops or pauses) Yesterday ran a similar (but different) file for hours with NO problems or stops. Feed rate was higer today. Any ideas? Thanks, Beau
Hi Beau On Thursday 18 May 2006 04:55, Beau Beaufait wrote:
am running BDI 4.38 with Jon's PPMC cards and a Bostomatic mill. Today running a Meshcam file to do some engraving in wood the EMC would just stop like it was paused. The spindle didn't stop it just stopped progressing through the file. I tried "resume" and nothing happened but when I tried "step" it would proceed on and then "resume" would work. This happened many times over several hours. Sometimes only a few (5 or less) min. between events other times like 20 min. The machine reported NO errors when this would happen,
Could you mail the offending file to me off list along with an indication of roughly which line(s) appear to trigger the problem please. The BDI-4.38 uses a 2.6.12.6-rtai kernel and there has been a couple of updates uploaded to the repository at http://bdi4emc.ourproject.org/debian/ which might cure the problem.. By the sounds of it, it is an intermittant bug which are often a pain to track down. The most likely area is the trajectory planner getting tripped up - Matt has been busy rewriting this section (thanks Matt) and may have fixed the problem in the process. Regards, Paul.
Hi Beau On Thursday 18 May 2006 04:55, Beau Beaufait wrote:
I am running BDI 4.38 with Jon's PPMC cards and a Bostomatic mill. Today running a Meshcam file to do some engraving in wood the EMC would just stop like it was paused.
Having spent most of the day running your nc file, I have been unable to replicate your intermittant pause with either emc-1.0-38 or emc-1.0-46.. I will not rule out the possibility of a bug somewhere in the code, and while I look for possible causes, could you do some checks your end. Booting the BDI-4.xx CD, one of the boot options is memtest86 - Run this for a few hours and see if any memory errors are reported.. If thepause happens again when running EMC, check /proc/emc/status and see if Heartbeat is still incrementing. Checking dmesg for any odd messages after ppmcmod has loaded is also worth doing - It is possible RTAI has trapped an exception and halted the execution of the realtime code. Regards, Paul.
I appreciate your help. I will try your suggestions, will be a few days before I can get to it however. Will keep you posted if I figure out anything. Thanks, Beau ----- Original Message ----- From: "Paul" <[email protected]> To: "Help and advice for BDI-4 users." <[email protected]> Sent: Friday, May 19, 2006 1:42 PM Subject: Re: [Bdi4emc-help] Question on BDI-4
Hi Beau
On Thursday 18 May 2006 04:55, Beau Beaufait wrote:
I am running BDI 4.38 with Jon's PPMC cards and a Bostomatic mill. Today running a Meshcam file to do some engraving in wood the EMC would just stop like it was paused.
Having spent most of the day running your nc file, I have been unable to replicate your intermittant pause with either emc-1.0-38 or emc-1.0-46.. I will not rule out the possibility of a bug somewhere in the code, and while I look for possible causes, could you do some checks your end.
Booting the BDI-4.xx CD, one of the boot options is memtest86 - Run this for a few hours and see if any memory errors are reported.. If thepause happens again when running EMC, check /proc/emc/status and see if Heartbeat is still incrementing. Checking dmesg for any odd messages after ppmcmod has loaded is also worth doing - It is possible RTAI has trapped an exception and halted the execution of the realtime code.
Regards, Paul.
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