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[ATM] Figuring with sub diameter lap

Subject: [ATM] Figuring with sub diameter lap
From: jonathan_bishop at sbcglobal.net (Jonathan Bishop)
Date: Tue Mar 9 10:14:34 2004

Hi,

I am currently figuring an 8" F5 mirror using my old
4.25" lab left over from when I polished my first
mirror. The defect I am working on is a sever
overcorrection, so I am attempting to reduce the 70%
zone.

So far it is going well, which is encouraging. I am
wondering whether many others use a sub diameter lap
to figure with. It seems reasonable as you can easily
direct you polishing to the zone you need to work on.

Jon Bishop

Follow-Ups:
- [ATM] Figuring with sub diameter lap
  - From: chaosopher23 at yahoo.com (Kevin Whitefire)
- [ATM] Figuring with sub diameter lap
  - From: melockwo at uiuc.edu (Mike Lockwood)
- [ATM] Figuring with sub diameter lap
  - From: rozer at pacbell.net (Richard Ozer)

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