[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

ATM Glass blanks & crayford stuff



Hi all,
 
Tim Walters dropped by and gave me the 14" Dia. 1" thick
plate glass blank that is cut with a high pressure water
jet I had ordered from him.  Impressive peice of glass. 
The blank really has a clean edge. I will have to
bevel the edges to insure I don't get any edge chips. It
will be awhile before I start on it though.  I still need
to finish the 10" Dob.  I plan on a F/4.5 open truss design
when I go for the gold. 
 I have completed another of the drawings of my crayford
focuser.  This one shows the details for making the bearing
guide support post that the tube rides against, tools required,
and location of relavent parts on the focuser body, etc.
The next drawing should be for the parts labeled "B", "C", and
the focuser tube alignment brace shown in the first file.  After
that I will do the drawings on the focuser tube assembly itself.
That last drawing will take some time to complete.  My cursed
wrist permitting.  I have taken some close up shots with my
35mm close up Macro lens.  If any turn out halfway decent enough
to post I will this comming week.  If not, well back to the "How
to take photos" book and another roll of film. :)  
 For those who maynot be aware of my last announcement about
said drawings and are interested they can be seen at my web
page listed at the end of this message.  Go to the link
"Dobsonian" in the main page text and from there click on
"Crayford focuser" listed on the left. Drawings are
accessed at the bottom of that page.
 
Enjoy the clear skies to those who have them. We sure don't
here in the Atlanta area.:(
 
David H. Bevel
davebevel@mindspring.com
http://www.mindspring.com/~davebevel/index.html
Norcross, Ga.