Prusa MMU2 Spool Holder Filament Crossover Protector

thingiverse

I'm experiencing an issue with my filament rolling over in the MMU2 spool holders, resulting in an overlapped loop when unloading. Upon retraction, the loop rolls onto itself and may snap or form a knot. To prevent this, I've found that introducing small vertical obstructions next to the loop can redirect it into an open loop instead of a knotted one. Initially, my design utilized a 0.5" PVC pipe, approximately 200mm in length, but I later adapted it to use 3mm diameter bamboo skewers, each about 300mm long. Both iterations seem to function equally well.