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gpot (Industrial) (OP)
5 May 03 17:36
Can you calculate the sheet area you need by working out the surface area of the mold? How much does a plastic sheet thin out when it sags?

I am building a vacuum forming machine for a prototype and need to estimate the forming area/frame size needed.

plasgears (Mechanical)
15 May 03 14:17
The ratio of straight shape to curved shape will point to the amount of thinning. The heater temp should be below melt temp. Use a generous corner radius, about 3 x t, at the flat to curved transition.
TheAnswerGuy (Materials)
27 May 03 16:00

I thought that I remembered seeing your post.
Check this out!
It may be helpful!

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