[ATM] RE: ATM Digest, Vol 9, Issue 21

["lou krajci" <loukrajci@comcast.net>]

>From: Mike Lockwood <melockwo@uiuc.edu>

>   http://bi-staff.beckman.uiuc.edu/~melockwo/index.html

>The most recent addition to it was a page about our recently completed
>30" F/3.8.  Three of us built it, and we ground the mirror ourselves.
>  It has been a truly rewarding project that will continue to evolve.

You mention some steps taken to control truss tube vibration.  See:
http://overton.tamu.edu/aset/krajci/
specifically
http://overton.tamu.edu/aset/krajci/dobsonian/dobsonian.htm
for steps I took to try and suppress truss vibrations, starting with the
section titled "I have taken other steps to reduce my scope's vulnerability
to wind."

I hope this helps.

Tom Krajci
Albuquerque, New Mexico
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