Prusa Mk3 Filament Spool Spacer

myminifactory

I use Maker Geek and Atomic Filament, both of which have a central hole in their spool, positioned on the side towards the end of the Mk3 PRUSA spool holder. This offset design allows the spool to hang out over the end of the arm, causing the weight to bend the holder slightly, resulting in an unbalanced appearance. Although it has never led to any issues or close calls, this aesthetic concern prompted me to create a spacer that fits inside the holder, keeping the spool closer to the upright part and preventing it from leaning over excessively.