From: hermit 
To: Bob Walker 
CC: ATM Group 
Reply-To: hermit 


Dave Sopchak thinks he was right up against the limit with a 18" X 7/8".

Ken

Bob Walker wrote:
>
> I have just obtained an interesting piece of glass.  It's nice plate glass
> 36" in diameter and 3/4" thick with a well finished edge ...
okay, it's a
> table top.  The question is, what should I do with it???  The obvious first
> choice would be to make a 36" mirror out of it.  From my readings on the
> List and elsewhere, I tend to think this is impossible.  But, the hope that
> springs eternal and all that impels me to ask, has anyone tried it?  What's
> the biggest 3/4" mirror you know of? (Successful one, that is!  Mel?)
> Another intriguing thought is grinding four 14" or so off-axis mirrors out
> of it.  That has the advantage of being feasible, at least marginally so.
> Then, of course, it could just be chopped up into a number of small
> blanks -- seven 11 inchers or five 12 inchers plus a 10" ... etc etc.  Any
> suggestions on practical ways to proceed will be welcome.  I've got plenty
> of time to mull this over; I don't expect to have my current projects
> completed for a year!
>
>  *  Best regards, Bob
> *
>          *           *   *
>
>             *         *

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