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Use UHMW For DIY Telescope Project

26 Sep

source: http://www.umich.edu/~lowbrows/reflections/2004/jbrisbin.1.html

Exerpt (Click On Link For Full Article)

The Multifunctional, Reprogrammable Velcromatic Side Bearings with Magic Slider.

by Jack Brisbin
Printed in Reflections: March, 2004.

While contemplating on building a telescope of my own design, I decided to use existing optics from other telescopes and stuff from the ATM vault of stuff I forgot I had. I wanted to be able to use various finder scopes, eyepieces and secondary mirrors on this particular telescope. This also means you need some type of adjustable (re-programmable) side bearing to compensate for the different changes in weight to balance the telescope and make it more multifunctional.

I have often thought about using Velcro to hold the side bearings (altitude) to the telescope tube and eliminate the cradle and/or sliding weight to balance the tube. By using two strips of Velcro you could reposition the side bearing on the tube and compensate for the weight (balance point) of the telescope. The telescope tube pictured is a square wood tube that is 36’ long and holds an 8” f4.5 mirror.

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1 Comment

Posted by on September 26, 2007 in DIY, Fabrication, Industrial Plastics, Recreation

 

One response to “Use UHMW For DIY Telescope Project

  1. Carl

    January 31, 2010 at 3:18 pm

    Now why didn’t I think of using closet flanges for the bearings !

    I’m building my first 6″ Dobsonian, and your use of the closet flanges may just be the answer I’m looking for ..

    Thanks

     

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