Prusa MK3 Improved Idler Door
thingiverse
UPDATE! The holes for the nuts were not quite deep enough. Made them 0.5mm deeper and replaced the files. The previous version works fine though, just the nyloc nut might not engage the nylon part of it. That is easily fixed by inserting the nut the nylon part first. I was inspired by https://www.thingiverse.com/thing:3504682 and made similar changes to the stock MK3 (without the S!) idler door with some additional changes and cleanup. Modifications compared to stock MK3 idler door: - Slide in holes for the shaft instead of through hole - Cutout to have more clearance for the bondtech gear part (*) - Wider opening to use DIN125A nylon washers (*) - Cuts for nyloc nuts (*) *) These extra mods are from Martin Wolfe's nice drawings you can find in this thread: https://shop.prusa3d.com/forum/hardware-firmware-and-software-help-f64/extrusion-gears-grinding-black-petg-idler-part-int-t19247.html Nylon washers are the ones that come with the printer. Check your spare bag. The picture with both new and old idler door in it show why the cut was needed for the bondtech gear side.
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