Random Under-Extrusion Issue on Prusa Mini+
Hello everyone,
I have an issue with my Prusa Mini+: some layers print well, but sometimes I get under-extrusion, as if the filament isn’t coming out properly.
I’ve already tried several things:
Replacing the Z-axis bearings (thinking the issue was related), but it didn’t help.
Cleaning the nozzle, the extruder gears, etc., but no improvement.
I also noticed that the extruder and Z-axis motors feel hotter than the others. Is this normal? How can I test the motors to check if they are working correctly? Are the stepper drivers replaceable on this board, or are they soldered/non-replaceable?
Honestly, I’m a bit lost and would appreciate any advice! Thanks in advance for your help.
RE:
I just started having the same issue, in particular on first layer. I do the first layer calibration and get a great layer, then go to print basic squares and they come out under extruded. Replaced filament, cleaned nozzle/clogs, all the usual mechanical issues and can't find anything. Just updated firmware and that didn't help.
Looking forward to some insights!
