Filament Spool Holder w/608 Bearing and Knob

Simple spool holders with 608 skateboard bearing and a knob with a captured M8 nut. For M8 threaded rod. The V2 version works for all but large hole, narrow spools. Use the V3 for those.

You will need one 608 size skateboard bearing for each holder and one M8 'narrow' nut for each Knob. I suggest printing two of each to give you full flexibility for all your spools.