QUOTE (FoxtrotDelta @ Aug 1 2006, 07:40 PM)
You can add a little extra on the depth then trim off the unwanted portion to get the correct dimension, then you wont have that portion that curves out. Foxtrot Delta
Foxtrot speaks the truth...
The vacuuforming done for the film model props was done this way... So, say a half an X-Wing hull is your item in question... It extends about an inch past what you need, and you simply cut the excess. The curve from the suction of the plastic to the spot where the master is resting on the board is then just part of the scrap. It wastes a little extra sheet but nothing too bad.
I hope what FoxTrot mentioned is of help Scott, it's a technique I read about once from the "pro's" as they say.