Re: [CAD_CAM_EDM_DRO] Laser mouse based DRO

On Mon, 2005-08-22 at 09:53 -0400, Peter Reilley wrote:

> For our applications it must be highly repeatable.

True. I thought it worked by "photographing" successive images of the
surface that it was tracking with a ccd image sensor, then detecting
relative movement by analyzing the shifted position in the images. An
experiment would be interesting:

Clamp one of these mice to the spindle such that it just clears the
table of a screw driven slide (like the X axis of a Bridgeport). Zero
the position (hopefully some existing software could be used, rather
than having to write something special just for the test), then move
back & forth randomly. Finally, return to the original position and see
if the position is still zero.

Or, I could call Agilent & ask them this question ;) .

Matt

P.S. Maybe I'll do that - call Agilent that is...