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Old 17-09-2008, 10:59 PM
Calibos (Keith)
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Join Date: Sep 2008
Location: Bray, Wicklow, Ireland
Posts: 91
Quote:
Originally Posted by CoombellKid View Post
The only other thing to consider with your alternative as well as what I
proposed above, is weight. Are the GSO's like the LB's being a little top
heavy especially when you have a reasonably heavy EP in the focuser?

regards,CS
Probably, yes but the GSO has the advantage over the LB of the needle roller friction brake in the altitude hub and also the adjustable COG. Why, do you think the wire trussses would have as much affect on weight as Kev's 3 extra box struts?

As for the wire crossing the Lightpath. I think it might be borderline regardless. ie. It may cross the arc of the tube rings alright but there is probably about 1 inch to spare anyway between the outside edge of the mirror and the inside edge of the OTA's.

Certainly if one used an eyebolt screwed into the top of each strut (ie. say between the 2 screwheads one can see on the outside surface of the struts) and then eyebolts into the side of the LOTA tube ring between each strut. Well then the wire would be well out of the lightpath I would imagine. Picture it using Kevs overhead picture above.

The question then, is would the tension applied be trying to splay the struts outwards. Does this matter when they are bound to the UTA with the brackets.
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