Thread: Question Vacuum forming
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Old Nov 15, 2012, 08:35 PM
dostacos is offline
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some what irregular
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Diamond Bar, California
Joined Feb 2004
1,026 Posts
When we first started vacuforming in orhtotics we used B17 oxygen tanks for the air reservoir and heated the plastic in a pizza oven. the plastic held between 2 metal frames and a wooden base with holes was set up above the oxygen tank. the mold sat on the wooden table and the plastic was flipped over {the frame was suspended in the oven so the plastic could sag} pulled down over the wooden base, flipped the lever and sucked out the air. AND that is when we found out that regrind plastic led to inconsistent plastic thickness oh did I mention that we made a video to share with the entire orthotic/prosthetic field and ehem... had a well built young lady kinda streaked the room the most popular training video ever in the field.

we also drape molded by putting the plastic on a metal plate with holes, sanded smooth and sprayed with a separator one person held the plate above the mold and the second layed the plastic on the mold, the plastic would go all the way around the mold and the plastic sealed to itself,

now back to your regularly scheduled posts....
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