Re: [ATM] 6-pole

[Bill <astronutski@yahoo.com>]

Hi Rob.
I went with a 6 pole on my 18" scope years ago.  I followed the lead of
Greg Babcock on his truss attachments on his 24".  Two of the sets of
poles are "hinged" at the top allowing the poles to dodge the light path.
It is doable without oversizing the mirror box.

I liked the weight savings and that was all I was after.  I never put a
shroud on, traded the scope for 24" optics before I needed to cross that
bridge.  But I will say, with the minimal weight savings and slightly
faster setup, I ended up reverting to 8 pole on my 24".

Here are a few pics, it's a free site so be forewarned, there are popups.
http://www.telescope.150m.com/18/18.htm

Greg's site
http://synrgistic.com/astro/24inch.htm
Good Luck,
Bill

--- Rob O'Toole <albireo13@comcast.net> wrote:

> Hi,
>    I am rejoining the list after a long hiatus.   I have a 12.5"  
> Royce conical on order and am planning the dob structure.
> Ease of assembly/breakdown are key so I am leaning towards a 6-pole  
> vs. 8-pole truss.
> 
> Any advice or hidden traps I might think about?
> 
> Thanks,
> Rob O.
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 



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