Proximity switch "contact bounce"

[paulus.v]

I had the bouncing problem when the distance between the sensor and the triggering metal was too high and the triggering metal was aluminium. I have the sensor passing by the metal not towards it.
In regard to repeatability, I have one sensor mounted too close to the stepper and the triggering position differs with the position of the stepper rotor, but only by a few hundredths of a millimeter.

[Boyan Silyavski]

When i home with Mach3 i am not in a hurry and use low speeds for not to overshoot much. With the Chinese controller this is not a problem as i can program it to home 5 times, so it checks 5 times where it is, each of them slower. I use 2 times though. First time overshoots, then slowly homes on place.