From: "Russell Jocoy" 
To: milnecd{at}yahoo.com, atm{at}shore.net
Reply-To: "Russell Jocoy" 


>From: Clive Milne 
>Reply-To: Clive Milne 
>To: atm{at}shore.net
>Subject: ATM Re: new minimalist 16 inch with sliding focuser
>Date: Thu, 31 Jul 2003 20:02:22 -0700 (PDT)
>
>
> >http://monroe.ca.campusgrid.net/home/Classroom+Pages/Mathematics/Mr.+Marti
>nez/Telescope.html
>
>      It's important to view the comments of Tom & Dan on this
>telescope in the context of using it as a learning experience
>and not be discouraged or offended.  These are two individuals that
>have an intuitive understanding of mechanical structures, which
>brings me to the point I feel needs mentioning for those who
>undertake an original design.  No amount of detailed CAD drawings,
>VRML models, swish web pages, CNC machining or exotic materials
>will compensate for a lack of understanding of mechanical first
>principles.
>     That is not to say that you have to be an engineer to have
>fun building telescopes, it may just make the finished product
>work a little better is all.  :)
>     ~Clive.
>
>




("atm{at}shore.net")


  I myself believe that this is an inovative idea. the slide idea of a
focuser is another animal added
to the mix of what is known and tried and true, Don't get me wrong I have
no experience with this
type of system, and have not viewed or seen the "smoothness " of
the flow of focus.... But, when
a system relies on the truss poles for focus, this is a bird of a different
color. In and out or up and down.
  I feel that my eye is more comfortable in one spot focusing in and out
rather than moving up or down
following a fixed eyepiece. It's a different twist but I can't see the
eyepiece, because it has moved to
another position in the dark.  This may sound like a stupid statement but
to focus up and down
does not seem to accurate on a Dobsonian type system. Maybe a refractor,
cass. or Mak.
But a focal system that is taxed already by "distance" from the
primary and collamation adjustments
that are critical, I believe that moving the focal distance away or from
the primary is for telescope set
up and not for focus...   Just my thought.. There are too many great
focusers out there. But it is not me to say that this is not a wave of the
future... In and out or up and down
,.. my wife still says no...... to
my idea of a 20" telescope... Life is grand, enjoy all that you can...
    Russ J.
("atm{at}shore.net")
>
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