Filament Spool Holder with Bearing

I created this filament spool holder because for the printable ones where the spool sits on top of the wheels, my spools kept falling over because of the jerking of the extruder.

This one requires:
- 1x 8mm x 10cm rod as an axle
- 2x 8mm bearings (e.g. 608 bearing)

Printable on a standard 20cm x 20cm bed.

For best use, this may also need some axle adapters / rod collars for difference sizes of spools. I have designed these also and will post a shareable one soon.