RE: [CAD_CAM_EDM_DRO] Toothed belts for DROs

Hi Alan and Art

Interesting this should come up; I recently bought a small coin sorter for
use in our Laundromat business that uses such a belt. In this case it
wouldn't have to be a toothed timing belt as the pulleys are not toothed but
the VERY ragged belt on it now does have teeth.

I need a replacement and had thought of using a giant O-ring if I could find
one or get one made. The belt would be about the size that would surround a
CD; if an O-ring would need to be made of about one quarter inch diameter
material.

How does one splice O-rings or this timing belt material? I hadn't thought
of trying to make one but might have a suitable belt (I have lots of junque)
I could cut and splice.

Thanks

Lew

-----Original Message-----
From: Art Eckstein [mailto:axtein@...]
Sent: Wednesday, August 01, 2001 7:35 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Toothed belts for DROs

Alan,
One of the guys that I have been corresponding with off-list is trying just
that. I have not heard from him in a couple of months, but we agreed that
there should be no problem and will offer excellent tracking ability. He
also has found a source where he can buy it by the foot!

Should be easy to do.

At 09:01 AM 8/1/01 -0700, you wrote:

>As I ponder my DRO dilemma .. squeezing things under the table of my
>HMill, I'm also staring at the drive system for the scanners I've taken
>apart.
>
>The scanner uses a toothed timing belt to move the carriage around,
>tensioned by a spring loaded pulley.<<snip>>