Bed Level Tuning Kit (Prusa & Clones)

cults3d

This is a kit for leveling the bed of Prusa MK2/MK3 and similar when the bed warp is too severe for the automatic calibration to handle it properly. The included tweezers is an absolute time saver, in fact I found it next to impossible to squeeze the stack of washers+spacer under the MK3 bed which is full of magnets. How to use: you add a couple M3 spring washers under the bed spacers (more where needed but keep in mind each washer is 0.5-0.8mm). You then measure and adjust as needed until the mechanical warp reduces. In my case I got a 10x reduction in warp (from 600 microns to about 50 - couldn't get further because the remaining warp is between the screws and is S-shaped). The repeatability of the dial mount seems to be around 20 microns (0.001") when moving along X axis and 3 microns when moving Y axis (0.0001"), note that the copper traces and the white paint also have thickness that influences the reading. The dial indicator mounts on 8mm rods, 45mm apart.