Simple universal filament holder

thingiverse

Edit: This design shares a striking resemblance with TUSH, so if you're looking for more options, simply search for 'tush'. This straightforward filament holder requires just 4 printed components and 4 ball bearings (ID 6 mm, OD max 20 mm). There's minimal complexity involved; print with your preferred settings, assemble the parts, and you're done. You might consider adding an anti-slip coating underneath or securing one of the feet using double-sided tape to prevent movement.