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ATM A PLOP result

To: "'atm@shore.net'" <atm@shore.net>
Subject: ATM A PLOP result
From: Ken Lilja <klilja@atl.mediaone.net>
Date: Mon, 04 Dec 2000 22:12:58 -0500
Reply-To: Ken Lilja <klilja@atl.mediaone.net>
Sender: owner-atm@shore.net


Hi,
I am redesigning my mirror cell and ran my numbers through PLOP.
My Pyrex mirror has an OD of 12.6" and an average thickness of 1.9".  If
I run a 4 point cell I get an error of 2.01375e-06 mm RMS and a support
ring at .508337 X radius.  This is approximately 1/2 the max error of
4.20e-06 mm as per the web page user manual.  As a reality check, does
this sound reasonable or have I missed something? 
Looking forward to any comments, soon to be cutting wood and metal.
Ken Lilja
Snellville GA USA

Follow-Ups:
- Re: ATM A PLOP result
  - From: "Jan van Gastel" <jhm.van.gastel@mdw.vu.nl>
- Re: ATM A PLOP result
  - From: astro.electronic@t-online.de (Michael Koch)

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