MMU2S pulley-body mod

thingiverse

This mod of the MMU2S part mmu2-pulley-body (in the Prusa [MMU2S](https://github.com/prusa3d/Original-Prusa-i3/tree/MMU2) multi-material printing kit) decreases the space around the pulley axis and has more support guiding the filament than the standard part. When printing flexible filaments through MMU2S they tend to get stuck in the pulley axis if there is even slight resistance either downstream, when loading, or upstream when unloading. For me, using this part has dramatically reduced the amount of jamming in the MMU2S. There are two versions: mmu2-pulley-body-mod is simply the modified standard part. mmu2-pulley-body-modular has a hole in which you can mount the mmu2-pulley-body-module from beneath. The idea here is to be able to experiment with different versions of the module without the need to disassembler/reassemble the entire mmu. (I have not tested this version myself!)