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[ATM] Paper tube?

To: atm_free@yahoogroups.com, atm@atmlist.net
Subject: [ATM] Paper tube?
From: "Ukyo Chen" <ukyochen888@hotmail.com>
Date: Mon, 12 Sep 2005 14:58:17 +0000
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Hi list,

I am working on the tube for the coming 127mm LH system lenses.
I had thought about to use Aluminium tube but the cost of material and 
manufacture 1 set is too high, so I turned to paper tube now, not sure if 
normal industrial paper tube is strong enough for a such aperture like 
127mm. Existing industrial paper tube can be offered in some diameters like 
125, 135mm and the thickness should be 1mm. Also they are very cheap, I can 
easily rebuild one if something failed.
Thanks for any sugguestion.

Best Regards,
Ukyo Chen


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