Two size Spool Hub with 608 bearing by wigwag
thingiverse
After printout out my Prusa Handle and Spool Mount http://www.thingiverse.com/thing:28319 I decided to make my own spool hubs. I have two different spools, one from 3dprinterstuff from Amazon and one from Ultimachine. This spool hub fits both. Instructions Step 1: Print two Hubs (you may want to mirror image one if arrows going backwards will drive you crazy) Step 2: Snap in a 608 Bearing into each. Step 3: Push fit into spool and add an axis, threaded rod or a number 2 pencil will work. I printed a 7.6mm diameter rod for it since I didn't want to cut rod and couldn't find a number 2 pencil. Step 4: Place on Spool holder.
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