Skywatcher Dob or GSO Dob?

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Meng Lee
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Location: NTU, Woodlands

Skywatcher Dob or GSO Dob?

Post by Meng Lee »

How it seems like everybody is making truss tube Dobs now

http://www.skywatchertelescope.net/swti ... class2=106

http://www.gs-telescope.com/content.asp?id=85
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Tachyon
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Joined: Wed Jun 01, 2005 11:40 am
Location: Bedok

Post by Tachyon »

Hmm... won't flexure be a problem?
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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ariefm71
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Joined: Wed Jan 28, 2004 4:15 pm
Location: bedok

Post by ariefm71 »

A truss means the members (aluminum poles) are interconnected at joints into triangular units. The poles experience tension or compression forces, but not bending forces, so they don't flex.

These new dobs are not truss design, the poles are going to flex. Been there done that :)
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acc
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Joined: Mon Sep 22, 2003 11:15 pm
Favourite scope: Mag1 Instruments 12.5" Portaball

Post by acc »

Looks like a very well-built scope! Great to see a well-built and affordable 16" dob that can be broken down :mrgreen:

http://www.cloudynights.com/ubbthreads/ ... art/1/vc/1

Discovery Telescopes and even the more premium ones will have to run harder for their money. :)
We do it in the dark...
Portaball 12.5"
Takahashi Mewlon 210
William Optics 110ED
...and all night long!
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