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Heat parameters in a Simplify3D G.Code file.  

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Agent Rock
(@agent-rock)
Active Member
Heat parameters in a Simplify3D G.Code file.

Working on a Simplity3D G.Code file where I'm changing the heat parameters in Notepad. Change the heat settings, save the file, everything looks correct, load it up in my MK3S. The printer heats as expected, but then after a few minutes of printing wants to revert back to the original heat settings.

I can correct in Tune but is there a code in the file that is reverting the temps?

TIA

Posted : 20/01/2022 4:47 pm
bobstro
(@bobstro)
Illustrious Member
RE: Heat parameters in a Simplify3D G.Code file.

Not sure what you mean by "heat parameters", but temperature gcode instructions are very likely scattered throughout your code. You'll want to search for all instances of M104 or M109 in the entire file. The slicer settings you find in the gcode are only useful to the slicer. They don't affect the printer as it actually processes the gcode.

Hope that makes sense!

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 20/01/2022 8:17 pm
Agent Rock
(@agent-rock)
Active Member
Topic starter answered:
RE: Heat parameters in a Simplify3D G.Code file.

Yes, that makes perfect sense! Figured there were instances as you describe but didn't know what they were called. I did find a listing on the web for M104 and similar commands. I'll study this some more.

Thanks for the reply.

 

Posted : 20/01/2022 10:46 pm
Bob
 Bob
(@bob-2)
Reputable Member
RE: Heat parameters in a Simplify3D G.Code file.

Where did you get this GCode and why can't you get the model and slice it yourself?  PrusaSlicer has been specifically tuned to provide GCode for Prusa printers.  There are other profiles for other printers which do a pretty good job of allowing you to use PrusaSlicer for them.  Even if you're locked into Simplify3d, why can't you reslice the model?  Filament profiles aren't just about temperature; acceleration, retraction, speed settings, and fan settings can also be changed on a per layer basis, are you going to search for all the settings and insure those are right as well?

I would never, ever, recommend someone use random gcode on their printers.  Thomas Sanladerer did an episode of how you can embed destructive gcode in a file that can screw up your printer and can be hard to eliminate if you don't know exactly what was changed.

It might be a fun exercise to test your understanding of gcode, but I don't see it as a practical alternative to reslicing the model for different filament.

Cheers

-Bob

Prusa I3 Mk2 kit upgraded to Mk2.5s, Ender3 with many mods, Prusa Mini kit

Posted : 22/01/2022 8:52 pm
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