Filament Spool Roller Arm

# I've made a new design - check it out :)
## https://www.thingiverse.com/thing:4335083

Features: variable spool width - just the bearings in the right space.

Remixed the Spool Holder to stay on top of my printers table.
Print 3x, put two 8mm rods in the holes, put 4x 608 bearings for the spool.