MMU2S pulley-body mod
thingiverse
This modified MMU2S part, specifically the mmu2-pulley-body, optimizes space around the pulley axis and enhances support for guiding filament compared to the standard part. When printing with flexible filaments through MMU2S, jams can occur if there's any resistance downstream, during loading, or upstream when unloading due to its nature. For me, incorporating this modified part has significantly reduced jamming issues in the MMU2S. The modification offers two versions: mmu2-pulley-body-mod and mmu2-pulley-body-modular. The former is a straightforward adaptation of the standard part.
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