Cropwell I've just been playing with the homing function and guess what? I did manage to run into the proximity switch. No damage though because I had my cursor on the reset button in Mach 3 and the switch mount wasn't fastened down. What I can't understand is why is the proximity switch detecting the gantry, stopping and backing off as it should but then moving forward crashing into the proximity switch. Could it be because I haven't set my steps per mm properly yet?