Re: EMC-programming request

In a message dated 7/16/99 1:42:13 AM Eastern Daylight Time,
jmelson@... writes:

<<
Oh, and the microswitch is a bit crude, you want something that can
detect touch with a precision of at least .001". I think a tiny linear
optical encoder can be cobbled up pretty cheaply out of various
bits and pieces. Or, you could get a dial test indicator, pull off the
dial pointer and attach a small encoder disk to the shaft. That was
what I was going to do.

>>

Not exactly sure what you guys are looking for here, but couldn't you make a
probe with some kind if piezio crystal to sense pressure? I would think with
the right circuitry it would be very accurate in the Z axis.
Tracey