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Old 05-10-2007, 04:21 AM
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spearo (Frank)
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Join Date: Feb 2006
Location: Braidwood (outskirts)
Posts: 2,281
my 2 cents worth...

Hi
before I embarqued on my poor man's observatory project I'd een using nothing but a wind screen around my scope (which was left out under a tarp in between sessions.

Here's how I designed it:
using mainly corrugated iron sheets (mostly zincalum type stuff and a few plastic/fiberglass ones) the kind used for roofing, I created a circular screen around the scope , 3 meters diameter, and about 5 foot high, not quite as tall as me.

(i'd used star pickets and tacked the sheets to those )

I ensured that the wall of the screen had a small incline towards the center, basically making the screen a bit conical, not a whole lot but basically, the whole at the top was slightly smaller than the diameter of the base. This angle was to account for the dynamics of air flow turbulence.

it looked horrible (recycling various metal/fiberglass parts different colors etc) , but did the job fine, in a terribly windy region.

dismantled now unfortunately, I cant post pics of it...

hope this helps
frank
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