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Re: ATM 18-point cell design

To: atm@shore.net
Subject: Re: ATM 18-point cell design
From: Stephen Tonkin <astro@aegis1.demon.co.uk>
Date: Sun, 1 Sep 1996 08:02:36 +0100
In-Reply-To: <m0ux33h-0029MaC@europa.com>
Reply-To: Stephen Tonkin <astro@aegis1.demon.co.uk>
Sender: owner-atm@shore.net

John Albert Anderson <jaanders@europa.com> writes
>I'm interested in building an 18-point cell for a mirror, but my small
>library of old ATM books doesn't cover the subject. A search of the ATM
>archives turned up a number of good messages, but I still don't really
>understand the design particulars (esp. the point spacing and
>grouping/articulation of points). Is there a book in print that deals with
>this? Better yet, does anyone know of on-line information on the topic?

TM26 has an article on it, complete with a BASIC program for calculating
9- and 18-point cells.  I'll not copy the entire program out (I'll
probably make lots of typos!).
-- 
Stephen Tonkin            :    UK Amateur Telescope Making Pages
<sft@aegis1.demon.co.uk>  : <http://www.aegis1.demon.co.uk/atm.htm>

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