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On Feb 25, 2005, at 2:44 PM, Royer, Doug wrote:

> Bruce,
> a little background on this 1st. Remember last year when you and
> George gave me pointers on the 1st(square)one I made? I took both of
> your  inputs and made a triangular A.H.
> I was experimenting making glass A.H.s that were square with 6-32
> machine screw level adjusters.That configuration was extremely
> difficult to level out.
> The black glass surface was extremely reflective.However,I found it
> wasn't very robust as I cracked the glass at some point and the 3145
> RTV didn't like to hold the glass to the aluminum base.Scratch the
> glass and back to the drawing board.
>


Doug,

If you wished, couldn't you leave the plexiglass cut square or
rectangular but only use three legs, one fixed and two adjustable?  It
would be more tipsy than a triangular piece, but might accommodate the
levels more easily.

Fred

   

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