Prusa MK2 Multi-Material MMU Idler screw gauge

This is a simple little gauge that snaps over the springs on the idler screws to aid setting the proper distance between the washer and the idler printed part (4mm-5mm according to the assembly instructions). The gauge is 4.5mm wide, but measure it after you print it just to be sure. I have found that setting this distance accurately makes a noticeable improvement in the quality of prints on the MMU. Especially at higher print speeds. Hold in place and gently tighten the idler screws evenly u