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My mmu does not download after finishing printing  

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Pablob
(@pablob)
Member
My mmu does not download after finishing printing

Hello, I have a problem with the MMU3. Yesterday, I was told to update the firmware, which I did, but I'm still having the same issue. After finishing a print, it doesn't unload the filament, and when I start another print, even if I select a different spool color for the change, it doesn't switch and keeps printing with the previous color. I have mk4s, has anyone else had something similar happen to them?

Posted : 28/02/2025 8:02 pm
Mike B
(@mike-b-3)
Estimable Member
RE: My mmu does not download after finishing printing

My first suspicion is that you are not really using the "{printer} w/ MMU3" profile.  I would suggest starting from default profiles for print, filament, and printer, and modifying manually as needed.  The unload is probably in the post-print gcode section but best to get Prusa's full settings.

Prusa MK4 since Jan 2024, Printables: @MikeB_1505898

Posted : 28/02/2025 11:29 pm
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