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MMU3 Issue  

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Upaithric
(@upaithric)
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MMU3 Issue

Recently installed a MMU3 on my 3.5s.

Did all the calibrations/checks and such and sent my first 2 color print.

Everything worked and the test print came out great.

While building the mmu tho, I seen there was a updated set of extruder housing parts, so I printed those and did that upgrade as well.

I am now running into a issue where the mmu will not load the filament all the way to the extruder. The filament stops feeding right as it gets to the end of the front tube on the extruder side.

Basically it's no longer feeding far enough to hit the extruder. The front tube is still the same tube and nothing changed length wise.

I even found the tube length setting in the LCD menu and tried messing with that, but nothing changed.

How did the feed length change suddenly and how do I go about getting working/feeding all the way through again?

Also ideally I would actually like to make the front tube a bi longer, so I guess I would need to change it further to account for the extra length of the new tube.

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Publié : 25/05/2026 9:17 am
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