extruder-idler-mmu2 oversize IR flag

cults3d

Remix of Prusa's Extruder-Idler-MMU2 part for the MK3s MMU2s. (Original found here: https://raw.githubusercontent.com/prusa3d/Original-Prusa-i3/MK3S/Printed-Parts/STEP/extruder-idler-mmu2s.stp ) Some people are having problems with this design where the idler flag doesn't trip the IR sensor. For me reprinting my own seems to have fixed the issue but if that doesn't work you can try this. The flag is extended an extra 1mm and gives you some meat to sand down until the flag is doing it's job reliably. I left a little notch so you can tell where the original ended. Let me know if this helps.