Re: ATM Attaching poles

["Frank Ward" <thewards@mindspring.com>]

 Yes, the solution is too simple. Yes, you have made
a mistake you haven't considered.

Exclude for a second the friction holding the carbon
tube to the aluminum and consider what a truss tube
assembly does. When the trusses are firmly afixed at
the mirror box and firmly afixed at the secondary
ring (or base of an enclosed section) then they
adequately define the position of the secondary mirror
in space to a very repeatable and accurate position.

Since your tube over tube attachment at the mirror
box is not afixed or repeatable you will gain slop at the
secondary cage each time you push on  the
ring structure...you don't have to move it more than a
sixteenth of an inch to be way out of columination (check
with Nils Olaf on this).

Your present structure is beautifully constructed and 
executed.......now add a seam to the carbon fiber and
a method of squeezing it tight and you will have completed
the job.....but then it will also look like everyone elses....
no fun there. 

Why not just ignore me and try it awhile before
you try any changes.......when you can't keep alignment you'll
have the pleasure of saying, "Damn that know-it-all SOB."

In friendship,

Frank Ward 
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 Only love gives us a taste of eternity.
       -- Jewish Proverb
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