[ATM] Supplies I need

["David Williams" <dwilliams1128@earthlink.net>]

Hello

Does anyone know of a place on the internet for a new or used spider for a 24" outer diameter tube (sonotube) and the price for an elliptical diagonal (new or used on the internet) for a 20" mirror.

Thank you.
Also I'm looking for a good used foucault tester and I wondered if there were any ATMer's out there who would sell there's cheap for a good cause.  And then you'll need to send me instructions on how to use the thing because I haven't used one before.  

I'm building a 20" mirrored telescope and the tube is a 24" diameter sonotube.  I got the 12' long section and cut 4' of it off to leave me with 8' and now I'm painting it white on the outside and black on the inside.  I was wondering if there were anybody who have a program to show you how to lay out your mirror and diagonal and spider.

Thank you.
David Williams
dwilliams1128@earthlink.net
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