From: James P Crombie 
To: Atm List 
Reply-To: James P Crombie 


Hello all
  Just finishing up some more pieces for my mirror grinder.  An aluminum
plate to attach to the back of the mirror with  a ball joint.to connect to
the overarm of the grinder.
  I was wondering what the usually method of attaching the mirror to the
plate would be?  Pitch, tape??
And would putting a piece of ply(1/8") on the bottom of the alum offer
a better surface to attach to.
  Mainly worried about how well  the pitch will stick to the aluminum.
some pictures of the latest parts.
http://users.eastlink.ca/~jpcrombie/pics/mirrorplate%201.jpg
http://users.eastlink.ca/~jpcrombie/pics/mirrorplate%202.jpg
http://users.eastlink.ca/~jpcrombie/pics/mirrorplate%203.jpg

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James P Crombie

Summerside                   Machinist
Prince Edward Island         Amateur Astonomer
Canada                       3D Designer

E-mail                       jpcrombie{at}pei.eastlink.ca
Astronomy webpage            http://users.eastlink.ca/~jpcrombie/
Rhinoceros 3D webpage        http://users.eastlink.ca/~jpcrombie/rhino/

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