Prusa MK2 Haribo (3030 frame upgrade) spool holder

This is a spool holder for the Haribo frame upgrade of the Prusa MK2S.

This spool holder features smooth rolling ball bearings to limit drag on the filament spool. This helps keeps down jerky movements that might impact print output. I personally also use a filament dust catcher which adds drag, so the less strain on the extruder stepper motor the better.

This spool holder has an end cap with a deep groove. A vertical attachment slides into the groove to prevent filament spools from being