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MK4 Loses X position  

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Steve
(@steve-4)
Estimable Member
MK4 Loses X position

MK4 loses X position when printing.  This appears that the printer forgets where the extruder is.

Printed some Prusament CF+PC (although I have had this with PETG) and got major layer shifting in the X direction.  This prints fine with my MK3/S.  See Photo.

Belts are tight, firmware is 5.1.2, Prusaslicer is latest.  I have attached GCode.

HELP!X Position shifting

Senior Life member of IEEE.

Posted : 29/12/2023 10:52 pm
Steve
(@steve-4)
Estimable Member
Topic starter answered:
RE: MK4 Loses X position

Forgot to include the 3mf file.  Here it is.

Senior Life member of IEEE.

Posted : 29/12/2023 11:28 pm
Steve
(@steve-4)
Estimable Member
Topic starter answered:
RE: MK4 Loses X position

More info.

I re-sliced the model for an MK3/S+ and ran it on the MK4.  No layer shifting.  Same machine, different slicing and probably different path through the firmware.

However, about 1/2 way through the printing, I get a notice to change filament.  I never requested a filament change anywhere, so this is strange, since I am using the same filament for the entire model (CF+PC).

I don't know whether the printer firmware is screwed up, or Prusaslicer.  

Any suggestions?

Steve

Senior Life member of IEEE.

Posted : 30/12/2023 1:07 am
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