Color change gcode no longer working after update
 
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Kiley Murphy
(@kiley-murphy)
New Member
Color change gcode no longer working after update

MK3S, firmware 3.14.1-8237, slicer version 2.8.1+win64

I've had many successful multi-color prints (single extruder) the past 2 years, but after a recent update (slicer and firmware), something is wonky. The gcode shows the M600 for color change, but the printer doesn't 'see' it (best I can describe). When starting the print job, it doesn't scroll through the times for color change.

I've never radically altered settings and haven't changed anything at all from previous to current, yet a gcode file created earlier this year works and one created this week (after the update) does not. 

Any help/direction is appreciated!

Kiley

Best Answer by Neophyl:

There's a known bug that broke the colour change time showing (M73).  It's in the release notes.  It will still do the change, just not the count down. 
https://github.com/prusa3d/Prusa-Firmware/issues/4734   

It was partially fixed in 2.9 alpha and the newer 2.9 beta is supposed to catch a few more cases.  Although 2.9 is not released yet so use at your own risk.

Posted : 15/12/2024 9:18 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Color change gcode no longer working after update

Can you share the Project file, including the model and M600 allocation
you will need to zip compress the .3mf file, and attach the zip file to your next post. 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 15/12/2024 10:39 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Color change gcode no longer working after update

There's a known bug that broke the colour change time showing (M73).  It's in the release notes.  It will still do the change, just not the count down. 
https://github.com/prusa3d/Prusa-Firmware/issues/4734   

It was partially fixed in 2.9 alpha and the newer 2.9 beta is supposed to catch a few more cases.  Although 2.9 is not released yet so use at your own risk.

Posted : 16/12/2024 12:04 am
Kiley Murphy
(@kiley-murphy)
New Member
Topic starter answered:
RE: Color change gcode no longer working after update

Thanks Joan, I'm attaching the zip file here. ColorChangeIssue

Two files, the .3mf and the gcode.

Posted : 16/12/2024 12:40 am
Kiley Murphy
(@kiley-murphy)
New Member
Topic starter answered:
RE: Color change gcode no longer working after update

Thanks Neophyl, I'll take my chances with the 2.9.0 beta1. The link you provided seemed to also suggest that the gcode could modified to revise M73 C0 to M73 C1... I may try that just to see...

Thanks!

Posted : 16/12/2024 12:46 am
Kiley Murphy
(@kiley-murphy)
New Member
Topic starter answered:
RE: Color change gcode no longer working after update

Update... the 2.9 beta did the trick. I did try revising the gcode M73 C1, and as some of you already guessed, while it did show time remaining... it was 1 second... 🙂

Thanks!

Posted : 16/12/2024 1:33 pm
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