On 29 Mar 2009 at 9:43, Rob Jansen wrote:

> > All I want is to simply tell it where X0 Y0 Z0 are in relation to
> mill
> > stock,
> Don't confuse limit and home switches. Limit switches prevent damage
> to 
> the machine (but should never be hit in real life).
> Home switches determine where your machine's zero location is.

I "trip" my Z limit switch every time I turn my mill on. The I set my Z. I 
don't have home 
switches on my mill. I guess the use of home and limit switches varies with the 
design
of the machine and the intended use.

John

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