MK4 stop extruding midprint
Hi everyone,
I bought my mk4+mmu3 about 3 months ago and everything worked perfectly until a month ago when the printer stopped extruding mid print and I had to interrupt it. Since then I can't print anymore because the issue occurs in every print, even in the prints that I have successfully completed before. I'm using some Sunlu Pla+ and I'm printing it with a temp of 215°C but the issue is present even with a new spool of Prusament Pla.
Here are the list of the thing that i checked:
- cold pull + cleaned the nozzle with a needle;
- changed the filament from Sunlu Pla+ and tried a new Prusament Pla spool and also a Prusament Petg with their respective profile;
- changed the thermistor and all the hotend;
- checked the Idler screw tension of the extruder and the mmu3;
- checked and recalibrated the extruder planetary gear;
- checked and tested the fan;
- reduced the print speed;
- reduced the temp and also raised it (i cannot complete a temp tower but everything was printing perfecty at 215°C before the issue);
- printed with retraction set to 0;
- checked the room temp that is around 29°C and the heatbreak temp that is around 36-38°C while printing.
I'm struggling to find a solution of the problem. Does anyone ever had such problem?
RE: MK4 stop extruding midprint
I hope this isn't a silly suggestion, but have you tried printing without the mmu3?
RE: MK4 stop extruding midprint
Hi, thanks for your reply. Yes i tried to print without the MMU3 but unfortunately I have the same issue
RE:
Hi, I have exactly the same issue. I tried everything, even disassembly of whole extruder, and did not found anything. Were you able to fix the issue?
RE: MK4 stop extruding midprint
There is another thread with the same questions. Seems to be a common problem to many of us with the MK4. See link below