Just curious, does anyone know the algorithym used for probe zeroing?
It is extremely likely that the actual zero is between stepper motor steps. So does the software/controller store the zero as the first step that contacts the surface, or that step minus 1?
Example: the probe is sitting .0025mm above the surface. the next step down would place it .0025mm below the surface (and would register as contact). Which step would be stored as zero?