At 04:53 PM 10/20/98 -0400, you wrote:
>
> Machining the roller from a round piece of plastic stock is an easy
> thing to do. Could someone with one of these take a few pics and
> make a few measurments? the next step (before actually making one)
> is to figure our what type of plastic/material to use. Teflon?
>
The roller is 2 1/2" in diameter and 2 1/16" long. The top and bottom
circumferences of the cylinder are slightly beveled. I compared parts to
one of the track balls on my Marble Madness. The opto board is the same
and so are the bearings. I was hoping the roller shafts were the same but
they isn't. They are about 3/8" longer on the roller than the trackball.
--
Christopher V. Moore -- Principal Engineeer
Heartlab, Inc. - 101 Airport Rd - Westerly, RI 02891 -- www.heartlab.com
Phone: (401) 596-0592 x113 - Fax: (401) 596-8562 - Email: cmoore@heartlab.com
"Let's get this mother out of here!" -- Last words spoken on the moon by
Gene Cernin, Apollo 17.
Received on Fri Oct 23 08:45:52 1998
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