Ahhh, my code might take into account the last ones. I'll have a calibration method where you can indicate where the bed is relative to their "limit sensor". I was also thinking of creating a way to tell when the plate is at or near the bed, but I'm not sure how well this would work out as it would mean attaching a button at the edges of the bed that would act as another limit sensor. The FSL3D cape would support me adding two of these buttons I think, if not I might be able to hijack some other unused pin.