[ATM] making carbon tubes

["Cord Scholz" <cord@astro-image.com>]

Hi all,
I'm trying to make a carbon tube using an aluminum tube as a positive
mandrel. Does anyone know ho to prevent the carbon cloth from wrinkling in
the vacuum bag? In my first attempt I used several cloth pieces that were
about 1" longer than the circumference of the tube and moved the seam from
layer to layer a few inches, the result were several nasty wrinkles in the
cf part.
I know that there must be a way to do this with a positive mandrel because I
have a sandwich tube that was made this way but I don't how it was done
exactly.

Cord Scholz
www.astro-image.com

   

_______________________________________________
ATM mailing list http://www.atmlist.net/