![](https://rt3dworkshop.com/wp-content/uploads/2021/10/IMG_20211008_121000-1024x768.jpg)
Designed for my Prusa Mini to sit next to the printer on the desktop. It uses 16 x 608ZZ bearings, of course, you need to fill all the spots. The bearing slides from underneath and snap in place.
PrusaPrinters.org: https://www.prusaprinters.org/prints/78393-608zz-wide-filament-spool-holderroller