Prusa i3 MK2 / MK2S Y Axis LM8UU Bearing Mounts

thingiverse

These mounts are specifically designed to secure Y Axis LM8UU bearings into their designated spots on the machine, providing four mounting screws for added stability. This feature proves particularly useful for individuals who have crafted their own Y Axis from wood or opted for a third-party replacement, as it guarantees all bearings will be positioned at an identical height. These mounts bear some resemblance to Tom's original design but boast enhanced durability and incorporate recessed screw heads for improved aesthetics. The required screws are M3 in length, with the optimal length dependent on the thickness of the Y Axis. For instance, 1/2 inch thick wood necessitates a 30mm M3 screw, while 6mm thick wood demands either a standard 20mm M3 or a longer 25mm M3 for locknuts. One of the most appealing aspects of this design is its ability to utilize the machine's pre-existing hole locations, thus eliminating the need for additional drilling.