Dave,
in your .ini file negate the sign of your home_search_vel value ie - if it
is positive make it negative - if it is negative make it positive
work with the home_latch-vel to get the direction you want after hitting the
home switch
Stuart

On Thu, Dec 23, 2010 at 11:01 AM, Dave Christman <mail4da...@gmail.com>wrote:

> I have configured my X and Y axis home positions using switches, but am
> having problems understanding the Z axis.  When I tell it to home, the
> axis wants to move down (away from my switch).  I realize I had to
> invert the signal in stepconfig in order to move the axis down in a
> negative direction for proper operation when running the G-code, since a
> negative distance moves the axis towards the piece being cut. Maximum
> travel for my Z axis is 4.75", and I would like to home the axis at .5"
> from the switch which is at the top of the axis.
>
>
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