Inductive Bed Leveling Sensor Spoofer

prusaprinters

Gluing some sheet metal to this extremely simple model will allow an inductive bed leveling sensor to be spoofed, making the printer think it is lower than it actually is. This is useful to more easily allow a height sensing tool such as the one in this video (you can find knockoffs or easily make your own instead) to be used when doing a manual mesh bed leveling grid if you find your ABL isn't accurate enough (as in the case of my Sovol SV06). Just place underneath the sensor when homing.Scale to slightly more than the height required in your slicer, glue some sheet metal to the top, and sand to a precise height. I suggest leveling with the spoofer, then moving the head down onto your height tool to check when it's triggered and then adjusting from there. When getting towards the end be sure to sand very lightly, checking often, or it's easy to remove too much. Although, since it's the relative differences that matter when creating the mesh, it's not super demanding, as you can compensate with the nozzle Z offset setting.