Vacuum forming is a very interesting process, especially when combined to 3D printing. 

Vacuum former for industry are very heavy and especially very expensive. 
How about making one out of stuff available at every hardware store.
Our vacuum former was made with poplar plywood and a bathroom heater. Hence a cost 20 times cheaper than the average
Vacuum former
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Vacuum former

Vacuum former is the result of a collaborative effort to build a strong machine for a minimum price.

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