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Date: | Tue, 4 Dec 2007 15:04:46 -0800 |
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ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Is anyone aware of any issues with mounting a Happ trackball in an
inclined panel (say, 30 degrees from the horizontal)? Does the ball
sag down with gravity over time and eventually lose contact with the
rollers inside the trackball assembly?
If anyone can share any experiences one way or the other, that would
be a big help. Many thanks!
--
~~
Allan Ayres
Exhibit Developer
Lawrence Hall of Science
University of California, Berkeley
Berkeley, CA 94720-5200
[log in to unmask]
510-642-1254
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