Prusa MMU2 Spool Holder Filament Crossover Protector
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Prusa MMU2 Spool Holder Filament Crossover Protector

For some reason some of my filament seems to roll over in the MMU2 spool holders to form an overlapped loop on ...

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Prusa MMU2 Spool Holder Filament Crossover Protector alternatives
Filament guide
GerryPB