RE: ATM Another fine 'string scope'

["Good, Donald" <dgood@aha.org>]

Doug,
It is not clear how the tubes and cage are assembled.  It appears from the
picture that the strings normally remain attached to both the cage and the
rocker box.  Your tanaka.txt mentions that springs in plastic pipes are
mounted in the corners (of the rocker box, I assume).  What about the
fitting at the cage end of the tubes?  How deep are the tubes in the tube
fittings at the cage and rocker box ends.  Is there a spring compression
release in the rocker box so that the tubes can be assembled in position
with no load and then spring pressure applied?  Otherwise, how is that part
of the assembly accomplished?

Thanks,
Don

-----Original Message-----
From: Peter Abrahams [mailto:telscope@europa.com]
Sent: Sunday, August 26, 2001 5:40 PM
To: atm-digest@shore.net
Subject: ATM Another fine 'string scope'



Doug Tanaka in Washington state made an excellent telescope using cord as
tension elements and reducing the number of trusses -- a 'string scope'.  I
posted an essay by Doug & 5 images.  If someone wishes to make a 'real web
page' of this, feel free.      --Peter
http://home.europa.com/~telscope/tanaka.txt
images:
http://home.europa.com/~telscope/tanaka1.jpg       98k  
http://home.europa.com/~telscope/tanaka2.jpg       73k  
http://home.europa.com/~telscope/tanaka3.jpg       73k  
http://home.europa.com/~telscope/tanaka4.jpg       68k  
http://home.europa.com/~telscope/tanaka5.jpg       94k

_______________________________________
Peter Abrahams   telscope@europa.com   The history of the telescope & 
   the binocular:   http://www.europa.com/~telscope/binotele.htm