Printrbot Jr Bowden Shaft Mount
thingiverse
This shaft mount is designed for Bowden-style extruders on a Printrbot Jr. There are two files available; one includes features for attaching a pneufit adapter while the other does not. As I had already glued my adapter into my existing part, I opted for the latter file. The extruder can be mounted in either direction, but mounting it opposite to the picture may facilitate filament changes/additions. However, my older version is too short for that and I'm yet to print out the updated one.
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