From: "James Lerch" 
To: "ATM List" 
Reply-To: "James Lerch" 


Oops, I made a typo on the link to the PLOP file, its supposed to be:

http://lerch.no-ip.com/atm/Cell_Mirror.zip


----- Original Message -----
From: "James Lerch" 
To: ; "ATM List" 
Sent: Tuesday, January 07, 2003 12:23 AM Subject: ATM Plop & Cellular Mirrors?


>
> Greetings All,
>
> For my next project, I'm working on slumping and fusing an 18" Cellular
> mirror.  The point of the project is just something new to explore (Kinda
> like building an Aluminizer!)
>
> Anyway, I was wondering if I could push PLOP into helping me figure out
what
> might happen with the following cellular mirror.
>
> 18" in Diameter, 1/4" thick face plate
> 6 - 18" long, 1/4" thick, 4" tall spars
>
> So I setup plop to model an 18" diameter 1/4" thick mirror
supported by
the
> following
>
> 20 support rings, with 12 support points in each ring.  Each support point
> was only allowed variable relative support.
>
> The result was a 1.9e-6mm RMS error and what appeared as a 'Common Sense'
> approved color contour plot.  Any Chance this might come close to reality?
>
> If interested, here's a link to the PLOP file I created:
> http://lech.no-ip.com/atm/Cell_Mirror.zip (Really Small!)
>
> Thanks,
> James Lerch
> http://lerch.no-ip.com/atm (My Telescope Construction, Testing, & Coating
> Page)
>
>
>
>

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