Prusa MK2.5/MK3 Filament Sensor Cover Upgrade

bowden Bowden mount cover easy extruder extruder cover Festo filament filament guide filament jam Filament Sensor guide Jam M6 thread Mk25 mk3 mmu mmu2 pass-through passthrough pc4-m6 prusa prusa i3 prusa i3 MK25 prusa i3 mk3 prusa i3 MK3 MMU2 prusa mmu PTFE PTFE tube quick quick release screw sensor sensor cover stuck threaded tool update upgrade