Re: [CAD_CAM_EDM_DRO] mouse encoder?

In a message dated 20-Aug-01 22:17:30 Central Daylight Time,
timg@... writes:

> Non-optical mice (the type with a ball) use 2 quadrature optical encoders to
> read the movement. Very low resolution, but certainly an inexpensive source
>

OPTICAL? You mean MAGNETIC, no? All the mouse-balls I have seen are
plain-black all over (now, don't get nasty!), no "stripes", etc. No
photo-transistors. Just Hall-effect sensors.

Or, is there some Jordian magic I won't know of in this Century, yet?


[Non-text portions of this message have been removed]