G-Code Error?

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30 Sep 2015 22:38 - 30 Sep 2015 22:38 #63278 by Todd Zuercher
Replied by Todd Zuercher on topic G-Code Error?
The M111/M112 are on/off vacuum clamping, and M113,M115,M123,M125 activate/deactivate control of the spindles on the W and Z heads. ( I commented them out on my simulation runs. For example if I were running a file using the Z spindle, M113 would allow M3 and M5 to turn that spindle on and off. M123 would connect the spindle on the W head to M3/M5. M115/M125 dis-connect the Z/W spindles from the M3/M5. If I were running a file with the W spindle only, I would issue M115 and M123 (then M3/M5 would control only the W spindle), running both spindles would use M113 and M123 (then M3/M5 would control both spindles). I don't think they are contributing to the problem.
Last edit: 30 Sep 2015 22:38 by Todd Zuercher.

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30 Sep 2015 23:43 #63289 by seb_kuzminsky
Replied by seb_kuzminsky on topic G-Code Error?
I agree the custom M-codes are not related to this bug. I can reproduce the problem here without them. I'm looking into it more.

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01 Oct 2015 06:41 #63305 by seb_kuzminsky
Replied by seb_kuzminsky on topic G-Code Error?
I just pushed a fix for this bug. It'll be in v2.7.0-39-g1c5461c from the buildbot, and in 2.7.1 when that gets released.

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01 Oct 2015 08:11 #63307 by Todd Zuercher
Replied by Todd Zuercher on topic G-Code Error?
What was causing the problem?

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01 Oct 2015 08:21 #63308 by seb_kuzminsky
Replied by seb_kuzminsky on topic G-Code Error?
It was a bug introduced between 2.6 and 2.7, as part of the trajectory planner work.

When doing arcs in the XY plane, the secondary axes (ABCUVW) could sometimes be converted from program coordinates to a simplified internal representation called "canonical coordinates" twice, resulting in the bogus W value that you reported.

Give the 2.7 branch a try and let me know if it fixes the problem for you.
The following user(s) said Thank You: Todd Zuercher

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01 Oct 2015 09:02 #63309 by Todd Zuercher
Replied by Todd Zuercher on topic G-Code Error?
Thanks :)

Looking forward to trying it.

Is it only available through git at the moment?

When should it be ready from buildbot? It may be a week or so until I might have the time to setup a git pull on one of the machines.

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01 Oct 2015 11:48 #63312 by seb_kuzminsky
Replied by seb_kuzminsky on topic G-Code Error?
Packages with the fix are available from the buildbot now. Make sure you get v2.7.0-39 or newer.

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06 Oct 2015 00:15 #63452 by Todd Zuercher
Replied by Todd Zuercher on topic G-Code Error?
Yes that seems to have fixed the problem for me.

Thank you for all your efforts. Even with the few bugs that are there, I think 2.7 (and it's new TP) are a vast improvement over 2.6 for us.

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