Extruder bearing assembly for Printrbot Plus v.2
thingiverse
A direct replacement for the extruder assembly. The screws, bearing, and tensioner screw/spring will all transfer over. The only thing extra is the addition of 3 1mm washers I added. One washer located on the tensioner screw and the others located on either side of the bearing. I was having jamming issues with the stock assembly and designed this one to allow the bearing to roll freely (I was having problems with the wood pinching the bearing and not allowing it to move...) I tried to also incorporate a groove to help guide the filament and it seems I could have gone slightly larger to press up against the filament better. Anyways, it fits perfectly and I think it is an improvement over the original.
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