Re: Expansion, thermal changes by grinding, polishing, figuring.
Clay Spence x3039 (cds@peanut.sarnoff.com)
Fri, 7 Jul 1995 09:46:28 +0500
> From: Ceragioli@uh.edu
>
> ... I'm not aware of any advantage to letting them cold press
> for days. In fact, Texereau warns against leaving the tool and blank
> together for too long <i>after<i> polishing, because he claims it
> could lead to microripple. What might happen at the micro-level
> <i>before<i> the figuring spell, I don't know. ...
> Roger
> Honpi@uh.edu
>
I know some materials etch glass. I think bee's wax is supposed to be
the culprit. Didn't it say this in ATM 1? In any case, I've seen nice
facet-shaped marks in my would-be mirror after long pressing.
Clay
cspence@sarnoff.com