[ATM] custom secondary holder - referral pls

[Bob Drew]

Y.  About your questions, I bought a rectangular block of ULE   5.75 x 9.4 x 
1.25 inches,
directly from Corning NY back in October, 1999. I paid them $857 USD for it.
( BTW, their quote some time ago for a 32” x 3” thick blank was about 
$16,400 usd. )  But I don’t know what  current numbers prices would be.

The reason for using someone experienced is because I want something that 
will be very sturdy & reliable ( for transport ); with a good collimation 
system; and most important, will not mechanically distort/stress the glass, 
therefore the precision.   Maybe integrated heating/anti-dewing later.

Not sure what design people are  using on their own larger custom sizes?  
The circumference "can" with a small lip? or strong clips/jaws? ( not going 
the adhesive route ). Thx.

Bob

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