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Switching gcode mid print  

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Illmilliner
(@illmilliner)
Eminent Member
Switching gcode mid print

Recently I had a print job with meshmixer tree support and the support broke off mid print. I had to stop the print, save the z height, cut the stl, print the last portion and glue them together. Surely it would have looked better had I been able to pause the print and switch the gcode using one without the support. Can someone please enlighten me on how one can switch gcode during a pause?

Napsal : 08/03/2022 12:55 am
Diem
 Diem
(@diem)
Illustrious Member

Unless you are an exceedingly good gcode programmer, forget it.

Cheerio,

Napsal : 08/03/2022 3:48 pm
Boone
(@boone)
Member
RE: Switching gcode mid print

I just successfully swapped gcode mid-print last night by intentionally pulling the plug, swapping the code and simply plugging it back in to let it go into print recovery. I had a 10hr print on. About 3 hours into the print, I glanced at my computer screen where Prusa Slicer was still open, and noticed I had missed a necessary change to the top surface detail of the print. I wanted to change something about the top of the print (which wouldn’t be reached until sometime in the last 1-2 hours of the print) without losing the first hours of the print. Willing to take a risk, I pulled the power plug on my MK3S+, made the change to the 3D model, in Prusa Slicer right-click>Reload from disk, re-saved over the original gcode file name on the original SD card, re-inserted the card, plugged the printer back in and it went through print recovery to pick up where it left off. I went to bed and the print was finished by morning looking exactly as I intended.

I don’t know if this would work in your specific case, but it worked in mine.

 

Posted by: @illmilliner

Surely it would have looked better had I been able to pause the print and switch the gcode using one without the support.

 

Napsal : 18/08/2023 9:04 am
Diem
 Diem
(@diem)
Illustrious Member

Compare the two files.  In your case I'm guessing they are vitually identical until after the point at which you paused, a much simpler change.

Cheerio,

Napsal : 18/08/2023 2:27 pm
Boone
(@boone)
Member
RE: Switching gcode mid print

@diem This entry is the first (and only seemingly relevant) google search result I could find when I wondered if what I intended to try would work in my case. OP posted over a year ago, so my response isn’t to help them, but rather to document my experience in a findable location in hopes it can help future searchers whose case is similar to what I experienced.

Napsal : 18/08/2023 8:34 pm
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