Prusa i3 Z Motor Mount Fix

thingiverse

Here is a replacement for Z motor mount of Prusa i3 MK2/MK2s/mk2.5 and MK3 printers. This fix the [dimensions error on Z axis (issue 49)](https://github.com/prusa3d/Original-Prusa-i3/issues/49) ### Features * Stronger * Compatible with MK2, MK2s, MK2.5 and MK3 * Fix [issue 49](https://github.com/prusa3d/Original-Prusa-i3/issues/49) * Quick remove of Z motor for maintenance * Tab on the back for perfect alignment * Dimensions of original Z mounts optimized for PETG * Z smooth rod are maintained in 7mm deep hole (instead of 5mm) * Selective infill technique to add strength on critical points * Use M3x12mm to fix the motor (instead of M3x10mm) * Open source by providing STL, STEP and Fusion 360 files ### /!\ Warning /!\ 1. Use M3x12mm to fix the motor (instead of the original M3x10mm)! 1. Follow carefully to the print settings bellow because there is selective infill inside the part Check out my Z top fix for a very strong and fine tuned Z axis : https://www.thingiverse.com/thing:2552246 ### Changelog v1.0 : increase rod hole dia by 0.05 v1.1 : improve print quality inside the smooth rod hole, make Nema 17 a bit more tighten ~~v1.2 : add tab on back for best alignment with the frame (not tested yet, v1.1 still available)~~ That was a bad idea, we cannot guarantee that the holes are perfectly aligned with the border of the frame. Thanks for the awesome work done by Josef Prusa and team!