From: "Jim Miller" 
To: "Shane LaPierre" ,
        
Reply-To: "Jim Miller" 


i'd hit it with flock paper. protostar or other.

jtm

----- Original Message -----
From: "Shane LaPierre" 
To: 
Sent: Tuesday, March 04, 2003 7:59 AM Subject: ATM Fix up an aluminum tube



I have an 8" newt that's in a truss tube now, and I'm going to put it
in a used piece of 9" diameter alum to make it a little more adaptable
for imaging purposes.  How do you fix up the exterior of an aluminum tube?

Also the actual diameter of the mirror is around 7 3/4" & the id
of the tube is 8 11/16".  That leaves less than 1" clearance
which brings me to my question about finishing the inside.  I can either
just repaint it flat black, or line it with cork... but there's not a lot
of room to work with. Any opinions?  As far as thermals this thing is
mounted full-time in a non-climate controlled observatory so it doesn't
take long to cool off.  I'm thinking the cork will help insulate the
optical path from my hands.

Shane LaPierre
http://www.geocities.com/stellar1972

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