Prusa i3 MK3 Noctua Extruder fan cover

cults3d

Update 06-10-2018: Added version of cover for R3 release of Prusa Extruder body due to changes in design, Noctua fan cover MK3_R3.stl file name. Assuming update to MK2 extruder to R3 version might work with this cover on MK2(s)/MK2.5, verification not done. JKSniper made nice Noctua fan upgrade for MK2; new MK3 comes with Noctua fan by Prusa which is great due to silence of fan. However, that color!!!! Wow... Guess nowadays Prusa ships with black Noctua fans - at least 2.5 upgrade came with black fan - but early versions of MK3 shipped with strange "beige-poop-brownish" color... Time for cover due to new construction/design of printer and extruder; Noctua extruder cooling fan comes close to left Z-rod so not much space. Taken Noctua cover from JKSniper as starting point, adapted it to fit MK3 without touching Z-rod. Installation: Need to take out just two M3 bolts/screws of Noctua fan (top and bottom at front) and leave rear top and bottom bolts in place; cover has notches that will "snap" into rear bolt heads and front is kept in place by M3 bolts - look at pictures, it should be self explanatory. Printed one on pictures in FormFutura's HD Glass (kind of PETG). UPDATE 26-12-2017: uploaded Rev2 version; added some bevels and 0.1 mm width and height to notches that go into M3 bolts remaining seated in extruder/Noctua fan to provide little more grip; depending on material and printer calibration, might work better for you.