Re: atm V1 #144

Steve Strickland (lensnut@tpoint.net)
Sat, 1 Jul 1995 12:13:34 -0500

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>>I've made an 8" telescope tube out of a 10" diameter 'sonotube',
>
>Does anyone have any advise as to the best way to cut a 15"ID length
>of sonotube, making it clean and square?
>
>How about the best way to finish it, so that it is good and flat
>black on the inside, and waterproof all over?
>
>Thanks to all,
>Eric Shelton

Try cutting it with a table mounted band saw.

You can fiberglass the outside for waterproofing. Be sure to glass the ends.

Peel one layer of paper out of the inside leaving a fuzzy finish and spray flat black.

--
Steve Strickland
Lensnut@tpoint.net

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