(No)Filament buffer for MMU2
thingiverse
My way to solve the MMU2 disaster. First I took the mmu2 a litte bit steeper, to make sure that the sphere gets back, even if there is some dirt in the chamber. Secondly I placed the spools above the printer on a simple construction. There is not really a need for the bearing, I just took them from the original spool holder. Now the important things. <b>**Reduce the friction !**</b> The PTFE tubes originally delivered by Prusa are far to long. I shortened them by the half. keep everything smooth curved. I never got more than 20 filament changes at a line. Using the shown construction, the turtle was printed without any mmu2 fails
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