From: "MARY WINSTON" 
To: kbarrett{at}cotse.com, atm{at}shore.net
Cc: atm{at}shore.com
Reply-To: "MARY WINSTON" 


And...You can keep the eyepiece a the same angle and height by arranging
the tertiary mirror at the Nasmyth focus through one of the elevation
axles, and "Voila"! No ladders, no harnesses, no trapeze, no
craning yer neck...Just a leisurely stroll around the base of your new
60" thin mirror, Cassegrain/Nasmyth, with its occular at a comfortable
standing height.

Coyote




>From: "Kristopher Barrett" 
>Reply-To: "Kristopher Barrett" 
>To: 
>Subject: Re: ATM Too big, too thin
>Date: Thu, 27 Feb 2003 15:22:00 -0500 (EST)
>
>
> > What is interesting to me is that the large telescopes that have been
> > made by amateurs have all been Newts.  Considering the short FL designs
> > with a tall ladder, it is kind of odd that the makers didn't make cass.
> > designs. There's no need to perforate the primary as a tertiary flat
>
>If you drill a bolt-hole for the tertiary mount stalk, you get zero new
>obstructions, and a secure mount. A small hole can be drilled with soft
>rod-stock and slurry. Much simpler than cutting a large hole.
>
> > mirror will bring the focus out to the side at any appropiate height
> > (imagine the Yard Scope with an eyepiece at eye level!) that would be
> > desired.  Such a design also allows for a better field of view as the
> > requirement for the focal length to be behind the primary isn't there.
> > Bob May
>
>--
>Regards,
>Kristopher Barrett    http://www.cotse.net/users/kbarrett


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