Re: [CAD_CAM_EDM_DRO] Re: linear scales for cheap

That is the case, really, DRO packages are nearly the same price as two
scales.

I Bought a mill/drill at an auction that came with 2 Acu-Rite DRO's, and one
20" scale. I'd really like at least another axis, but spending the $250 for
an 8" scale for the other axis is jus a little bit more than I'd care to
spend..

----- Original Message -----
From: "caudlet" <tom@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, August 31, 2002 7:55 AM
Subject: [CAD_CAM_EDM_DRO] Re: linear scales for cheap



> US Digital sells linear strips in several different lines per inch.
> They also sell the reader heads and quadrature decoder chips. The
> challenge is how to mount the flexible strip and slide it past the
> reader head (or visa versa) Glass scales are more difficult to come
> by. I have suggested that the people at Shooting Star make their
> linear encoders based on a precision rack and rotary encoder from
> their DRO product, available as a reasonably priced seperate item.
> Since the rack can be any length and cut if needed it adapts well to
> different applications. Currently it's almost as cheap to buy the
> whole package as it is just the scales. I think they are missing a
> potential market but heck, what does any engineer know about
> marketing!