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Re: ATM Big scopes



On Tue, 13 Aug 1996, Richard Schwartz wrote:

> -- [ From: Richard Schwartz * EMC.Ver #2.5.02 ] --
> 
> Uh... if you slump your blank, the taper at the edge is no problem at all. 
> The glass will sag down to the slumping form.  So there is no reason not to
> use the full 48" width of the sheet of glass.
> 
> Note that annealing must be done after slumping, so there is not value in
> getting a fine annealed pyrex if you slump it.  Just go with cheaper un-
> annealed glass.

Hi Richard!

If you use unannealed glass, I wonder how much it increases the 
chances of cracking the glass while you heat it?  Just a wild and crazy 
thought.

Bill


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+=====================================================+
| Bill Lee              | "All opinions are mine and  |
|                       |  don't reflect my employer" |
+-----------------------------------------------------+
| wjlee@itd.ssb.com                                   |
| wlee@xensei.com                                     |
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