To: atm{at}shore.net
From: tkrajci{at}san.osd.mil
Reply-To: tkrajci{at}san.osd.mil


>From: "Mel Bartels" 

>http://monroe.ca.campusgrid.net/home/Classroom+Pages/Mathematics/Mr.+Marti
nez/Telescope.html

No baffle disk behind the secondary mirror.  I hope the owner adds one to
improve baffling and contrast.

No blackening of components behind main mirror.  Another spoiler of contrast.

Design seems to have rejected the truss concept.  (Although the website
calls various parts of the scope a 'truss'.  Is this an indication of the
level of engineering understanding of the designer?)  We have many not-
very-stiff components from what I can see.  I would be interested to hear
how it performs in a breeze, and how fast vibrations die out.

Azimuth ring is plenty large...but 'rocker box' is very narrow front to
back.  Again...how stiff will this be, and how will it perform in a breeze,
and damp down vibrations?

"The primary mirror sits on three sturdy springs..."  Does this
mean the mirror is on a three point support?

I see lots of mony spent on machining, and not very good design concepts
from a stiffness standpoint.  This may turn out to be an expensive
'learning experience'.

Tom Krajci
Tashkent, Uzbekistan

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