Adjustable IR Flag for Prusa MK3S MMU2S

prusaprinters

After lots of failed prints and wasted filament on loading failures , I stopped everything and looked into root causes. Beside some MMU issues , I've concluded that the standard IR flag is part of the problem ... in my configuration anyway. I've played with some of the alternatives on Thingiverse , but none worked for me in all conditions. So I've designed an adjustable version. You'll need 3 M1.4 x 6 screws. Two to fix the flag and one for adjustments. I used screws from this set : \https://www.amazon.com/gp/product/B07NKNCM8Q/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1&tag=tv-auto-20 As with the original , you'll need a 3mm drill to enlarge the hole for the door pivot. Go easy on this one , make sure you don't make it to wide. The flag piece is small and quite fragile, be careful when you remove it from the plate. I've finished a couple of multi-color prints with this contraption , no problems so far. I've included the STEP file , if you want to tinker. Print instructionsCategory: 3D Printer Parts Print Settings Printer Brand: Prusa Printer: MMU2s Rafts: No Supports: No Resolution: 0.2 Infill: 30% Filament: Prusament PETG