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"MMU load failed" ... after the load works  

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John L
(@john-l)
Eminent Member
"MMU load failed" ... after the load works

I'm trying to print some copperfill, in single-filament mode. After fighting with it for 20 mins, I realised that the extruder idler was a little tight (and making noise), so I loosened it a little. Now, it'll make a wee pool of filament (yay), just before it tries a first-layer-calibration....but then retracts and throws an MMU load error.

It does it a few times, until the idler gears have eaten through the filament, and I've to take off the PTFE tubes, remove the damaged filament, and try it again. Any idea what that could be ? 

There is another weird 'failure' mode I hit. If I push the filament through the MMU a little too far, so that the PINDA in the MMU notices it...when I I hit center, then right buttons on the MMU  to clear the issue...and it immediately moves the selector to the right, breaking off the filament and then the light on the selected filament flash green/red. I can't work out how to clear that, without resetting the MMU, and the printer. Any ideas ?

Posted : 21/03/2021 5:14 pm
John L
(@john-l)
Eminent Member
Topic starter answered:
RE: "MMU load failed" ... after the load works

Possible issue with copperfill; it's much higher friction through the PTFE tubes, than other filament. Maybe I should convert the printer back to a non-MMU printer if I'm using those sorts of filaments.

Posted : 21/03/2021 5:15 pm
John L
(@john-l)
Eminent Member
Topic starter answered:
RE: "MMU load failed" ... after the load works

Nope. I've no idea. It started working, without me changing anything.

Posted : 21/03/2021 6:11 pm
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