Re: [ATM] 40" mirror some ideas

[jroweapp@postoffice.swbell.net]

Dear Jerry;
S&T had an  article on a dentist in the N.E. ( Conn.?)  who made a 30" 
or 32" newt. who  sand blasted  the blank in a honeycomb fashion to 
reduce its weight and  etched it with "nasty stuff" ( it was not 
hydrofluric acid but probably a kin) to relieve any stress induced from 
the weight reduction. I believe this was in the last 3 years.  I did not 
find it with a short web seach, a longer search will probably find it.  
Of course the usual caveats apply.
Regards and Victory
Jeffrey Rowe

Jerry B. Hillman wrote:

>6x the weight of that 20" x 2" is 300 pounds. and a 8 inch x 40 inch primary
>would cost more money that I have had at one time in my entire life. The
>cost of the alterations would probably double that.
>But I could probably cast it as a honeycomb with those specs, couldn't I?
>
>Clear skies, Jerry
>
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