Re: [ATM] Mirror cell advice

[Jeff Anderson-Lee <jonah@eecs.berkeley.edu>]

For either plate glass or pyrex, three points (at radius 2.06 inches == 
0.412R) is marginal, but you might be satisfied assuming that your edge 
thickness is still close to 1in.  If you have ground some away, you 
might want to add another point.

Four points at radius 2.62 inches (0.524R) should do just fine, which 
can be made using just one bar.

Jeff Anderson-Lee
Sacramento, CA, USA

Darran Summerfield wrote:

>I was just wondering what would be the best kind of mirror cell to
>build?
> 
>It's a 10inch f6.4 but is only 1 inch think. Being as it's on the thin
>side, will this require a floatation cell, or can I get away with a
>Berry style wooden disk and three blobs of silicon adhesive?
>  
>

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