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1.2.3 Pressure Management and Retraction bug #2470

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ccavanaugh opened this Issue Dec 31, 2014 · 5 comments

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ccavanaugh commented Dec 31, 2014

I tried the new Pressure management with a K factor of 8. When used in combination with retraction enabled (10 mm) , the filament was retracted significantly multiple times until it was half way up the bowden tube before I stopped the print. This occurred while laying the perimeter of the first layer.

Resliced without pressure management enabled and everything was okay.

@alexrj alexrj added this to the 1.2.5 milestone Jan 4, 2015

alexrj added a commit that referenced this issue Jan 5, 2015

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@ccavanaugh, I failed to reproduce the issue. I also wrote a unit test that succeeds.

Could you provide more details for reproducing that? STL file and configuration (File -> Export config…). Thank you!

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alexrj commented Jan 5, 2015

@ccavanaugh, I failed to reproduce the issue. I also wrote a unit test that succeeds.

Could you provide more details for reproducing that? STL file and configuration (File -> Export config…). Thank you!

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Wait - I can reproduce it...

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alexrj commented Jan 5, 2015

Wait - I can reproduce it...

alexrj added a commit that referenced this issue Jan 5, 2015

Bugfix: pressure regulation accumulated too much retraction and didn'…
…t discharge at the end of print. Includes regression test. #2470
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Okay, I fixed this and added a regression test. Thank you!

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alexrj commented Jan 5, 2015

Okay, I fixed this and added a regression test. Thank you!

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ccavanaugh Jan 6, 2015

Thank you!... Will try again after the next release. I'm tying to run nylon with heavy retract and looking forward to seeing if it improves print quality.

ccavanaugh commented Jan 6, 2015

Thank you!... Will try again after the next release. I'm tying to run nylon with heavy retract and looking forward to seeing if it improves print quality.

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braddo99 Jan 9, 2015

Terrific, had this problem too, massive retraction (and I couldn't see it in the gcode for some reason?)

braddo99 commented Jan 9, 2015

Terrific, had this problem too, massive retraction (and I couldn't see it in the gcode for some reason?)

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