Vac U Forming?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Gregory Hunter <ghunter31014-at-yahoo-dot-com> 

Has anyone on the list ever attempted to vac u form a
small toroid? I have the ability to cast small toroid
halves of plaster of paris. They come out smooth and
perfect, but they are also heavy and quite fragile. I
was thinking of using a plaster toriod half as a male
vac u form object. Once I join the two plastic vac u
form model halves together, I could sand down the glue
joint and wrap with aluminum tape. I welcome any tips
or hints on hobby vac u forming. For example, what is
the best kind of plastic for this purpose? Can I use a
small heat lamp to soften the plastic from above, or
must I use an "oven"?




=====
Gregory R. Hunter

http://hot-streamer-dot-com/greg