8mm shaft collar JC Mallozzi
Printed collar made to fit any 8mm smooth rod.
I used this specifically on my Printrbot Spool holder in place of the crappy wood one that would always fall off.
Just need one 3mm nut and a M3 x 10mm screw, I used one of the screws that held the two halves of the wood collar together.
Print with 2 shells and minimal infill. I got away with 15%.
It should be a snug fit.
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