This page was last updated 05/28/2004.
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The base is 24 inches wide x 29 inches long.  It is made of 1/2-inch thick plywood on a frame made of 2 x 2's.
The Azimuth gear is about 22-1/2 inches in diameter and 1 inch thick.  The gray ring a piece of sheet metal.  This ring rides on roller blade bearings for smooth operation.
The Azimuth gear attached to the base.
Three roller blade bearings:
ID = 5/16"     OD = 3/4".
A set of 16 bearings was purchase from Target for $12 USD.
The Azimuth Gear is sitting on the roller blades bearings.
This is a closer view of the roller blade bearings
The Mount for the Ten Inch Computer Controlled Scope
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