
Extruder with bowden passing through
thingiverse
All my PC4-M6 couplers broke, so I wanted to be able to use a PC4-M10 coupler, and this can potentially reduce friction by having the bowden tube go directly from the extruder gear to the heat break. I would use this for direct drive since the coupler seems to prevent the bowden tube from pulling away but not from being pushed in.
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