[ATM] Second Thoughts on Mirror Support

[jonah at eecs.berkeley.edu (Jeff Anderson-Lee)]

Stuart Hutchins wrote:

>This is a different problem than the solid plate analysis by Jeff
>Anderson-Lee.  Jeff is the kind of PLOP driver I want to be when I grow up.
>
;-)  Comes from having too much free time last December while my wife 
was out of town.

>His work may show why Don D'Egidio's 17.5 Discovery seems to work OK when
>many of us don't think it should.   Outlining an acceptable design envelope
>for the solid-plate+RTV cell would be a significant contribution to the ATM
>art.  
>
I'm excited by the possibility.  Especially since I am working on some 
mirrors that need >3 point cells and I'm more of a woodworker than a 
machinist.

>I just made a test sample of RTV between two 1" square aluminum plates
>to measure modulus.  Will post measured value for a "typical pad" in about 5
>days after the stuff cures.
>  
>
Thanks Stuart!  I await the results with interest.

Jeff