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MK3S/MMU2S not loading filament on print  

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Davejavu
(@davejavu)
Active Member
MK3S/MMU2S not loading filament on print

I just upgraded my MK3/MMU2 to MK3S/MMU2S. When I start a print, the filament does not load correctly unless I use "load filament to nozzle" first. If I don't do this, then the first layer does not print. I have only used single color printing since the upgrade, so I don't know what would happen with a MMU2S filament change.

Things I have considered:
-MK3S IR sensor is not working correctly. But I verified that the MK3S IR sensor works correctly (shows 0 when there is no filament and shows 1 when there is filament in the Bondtech gear).
-Filament is binding somewhere (reel to MMU2S, MMU2S to extruder) But the filament feeding works fine for a whole print if I load it first, it's just the initial loading that fails.
-Bondtech or MMU2S pinch rollers do not have enough pinch pressure. But it prints fine if filament is loaded to nozzle first.

This just seems like the firmware is not feeding enough filament after the MK3S IR sensor triggers.

Veröffentlicht : 17/03/2019 11:39 pm
Davejavu
(@davejavu)
Active Member
Themenstarter answered:
Re: MK3S/MMU2S not loading filament on print

Solved:

Performed the MMU2S factory reset and now it works correctly.

Veröffentlicht : 18/03/2019 1:46 pm
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