Re: ATM Regrinding

[Bruce Swayze <swayze@europa.com>]

At 03:03 PM 9/22/97 -0700, you wrote:
>
>No Don't do it!
>
>Unless the 6" F8 is hopeless sell it used ($75-100? Astromart?) and buy a
>new blank from Newport glass.  Even a radius generated 6" F5 blank will
>only run about $30.
>
>Scott
>
>>> From: johnson@srsc.org (Jim Johnson)
>>> Subject: Regrinding Question
>>>
>>> I am going to regrind an old 6" f/8 mirror to f/5.  I've purchased a
>>> convex
>>> tool from Newport and was planning on starting with #80 Carbo and
>>> chordal
>
>--
>Scott Rychnovsky

I agree wholeheartedly!  When you start regrinding on a mirror, you
immediately reduce it's value to that of a glass blank.  If the mirror is
usable at all, far better to sell it and realize it's full value.  If the
figure isn't very good, you're still far better off to refigure it until
it's good and then sell it, and buy a blank to make your new mirror.


"*-.,_,.-*"`"*-.,_,.-*"`"*-.,_,.-*"`"*-.,_,.-*"`"*-.,_,.-*"`"*-.,_,.-*"`"*-
Bruce Swayze
swayze@europa.com
http://www.europa.com/~swayze    Swayze Optical Home Page 
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