e inductive sensor will allow you to automatically palpate 4 calibration points to correct mounting imperfections.
is only detects metals (detection ~ 1mm for non-ferrous metals (aluminum, ...) and ~ 3mm for ferrous metals (steel, cast iron, ...).
Caution: use of a glass plate is prohibited with the use of the bed of aluminum.
Using Z Sensor
Position the inductive sensor slightly above the nozzle.
approximately 0,5 mm environ