filament spool holder, using 608[zz] bearings. no hardware needed

This spool holder uses standard skateboard bearings to carry the weight of a spool of filament. The spool freely rotates, and there are spaces for bearings to support several widths of spools. As compiled and offered, the spool holder supports widths of 70mm and 90mm, which are typical of 1kg and 3kg spools.

OpenSCAD source is also offered, so that if you have other spool widths, or want to modify it, you can! Share and share alike!