Re: Re: Re: Home/Limit switches : Micro switches or optical > interrupters?

The Hardinge CHNC lathes had a magnet imbedded in the large drive pulley.
It pulled a hall switch for fine home. There was also a snap switch for
coarse home. These used resolvers rather than encoders and didn't have
an index pulse.

Ray

>    From: Marv Frankel <dcdziner@...>
> Subject: Re: Re: Home/Limit switches : Micro switches or optical
> interrupters?
>
> Ed,
>      You better be machining non-ferrous materials exclusively, if
> you're mounting magnets on the table, or figure out a way to keep chips
> and cuttings from accumulating on the magnets. I have that problem with
> my magnet coolant mister, and that's not critical at all.
>
> Marv Frankel
> Los Angeles