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Re: [ATM] Grinding Machine Mishap!

To: atm@atmlist.net
Subject: Re: [ATM] Grinding Machine Mishap!
From: Mark Holm <mdholm@telerama.com>
Date: Sat, 24 Apr 2004 12:18:28 -0400
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Perhaps I am being ignorant here, but it is a little hard for me to 
believe that astigmatism ground in at 25 micron was not taken out by a 
return to 220.

Also, I am not sure I believe that having the mirror a little off center 
on the table would necessarily cause astigmatism.  You are still 
stroking and rotating, and the only shape that will remain in contact is 
a sphere.

What am I missing?

Mark Holm
mdholm@telerama.com

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Follow-Ups:
- Re: [ATM] Grinding Machine Mishap!
  - From: "Bob May" <bobmay@nethere.com>
- Re: [ATM] Grinding Machine Mishap!
  - From: Michael Lindner <mikell@optonline.net>

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