Re: [ATM] Plop to Calculate Warped Mirror ?

["matt" <mariusrf@bellsouth.net>]

-----Original Message-----
From: Mark Holm <mdholm@telerama.com>
To: matt <mariusrf@bellsouth.net>
Cc: atm@atmlist.net <atm@atmlist.net>
Date: Monday, August 30, 2004 6:17 PM
Subject: Re: [ATM] Plop to Calculate Warped Mirror ?


>That is a pretty tall order.  Plop makes a lot of use of symmetry in
>it's layout definitions.  Defining a single point separately, while not
>necessarily impossible, is not easy.  I was hoping you would be
>interested in a relatively simple layout.  I might have been able to
>figure out the necessary hack for that.  54 points is anything but
>simple though.  Not at all sure I can figure out the trick for that one.
>
>1/2 x 18   " You are a braver man than I, Gunga Din."
>
>Mark Holm


1/2 x18 -brave, maybe .
If I can figure out the quantitative aspects, it will be an active support
mirror . Strain gages, linear actuators, the whole bit . I guess not brave
enough for an astatic or plain mirror cell . Before I get to that it appears
that I'll need to delve into some FEA work though .

best regards,
matt tudor

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