and one option is [3d-printy]’s vertical filament spool parts drawer design. The way this solution works is by using the spool to hold twelve vaguely pie-shaped drawers that can be individually ...

and hard filament as the axles with 3D printed wheels for the quasi-thrust bearing used to support and rotate the spool. All the parts are available over at Thingiverse.com — even if you don ...