Re: [CAD_CAM_EDM_DRO] Repeatability of microswitches

Spehro Pefhany wrote:

> Hi, all
>
> I'm working on a mill CNC conversion, among other things, and
> am wondering about the best way to do the 'home' switches.
>
> Are microswitches repeatable to a few thou or better, or would
> something else be better (photo interruptor, or hall effect ?).

The traditional way is to use encoders with an index pulse, and use the
microswitch to set which revolution of the encoder will be searched for
the index pulse.

Jon