MMU2 fails to load filament on 1st print after exiting service menu
https://manual.prusa3d.com/Guide/Service+menu+-+bowden+length/821?lang=en
After doing bowden length calibration. U exit service menu by hitting reset on mmu.
So goto sd card, choose a print. Printer will begin heating up nozzle and bed, then do bed calibration. Once bed calibration is done, it fails to load filament.
Solution 1 (tried it)
I have to reset printer by hitting reset on mk3. Then print from sd card again.
Solution 2 (haven't tried it)
Just print from sd card a 2nd time. (Chris Riley, live stream build of mmu2)
Have any of you experienced this issue?
I thought I was the only 1, until I watched Chris Riley's live build stream and it happened to him also.
Github issue:
https://github.com/prusa3d/Prusa-Firmware/issues/1190
Prusa MK3 preassembled (R2/B6) > (R3/B/7)
Prusa MK2.5 kit > MK3 > MK3+MMU2 (R3/B/7) 😀
Prusa SL1 3D printer + Curing and Washing Machine (day1 order)
Taz6
CR10s4
Delta 3ku
Re: MMU2 fails to load filament on 1st print after exiting service menu
Happened to me a few times as well. However I do tend to reset the printer now after MMU calibration (or after failed/cancelled prints or other issues), so for me it's not something critical.
At least there's a work-around for this 😉
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: MMU2 fails to load filament on 1st print after exiting service menu
I have something similar happen to my 2nd filament. 1st filament works fine. Its almost like the MMU cannot load the same length of 2nd filament through the tube as my 1st filament.
Any idea?