Two size Spool Hub with 608 bearing by wigwag
thingiverse
Following the success of my Prusa Handle and Spool Mount from Thingiverse (http://www.thingiverse.com/thing:28319), I made my own spool hubs to suit two different spools - one from 3DPrinterStuff on Amazon, another from Ultimachine. To do this, print two Hubs, possibly mirroring one for easier use. Then, insert a 608 Bearing into each Hub. Next, push-fit the Hubs onto your spool and add an axis such as an axis, threaded rod or even a number 2 pencil. Finally, place the Hubs on your Spool holder. Alternatively, I printed a 7.6mm diameter rod for my Hubs to avoid cutting a rod.
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