| http://www.w3.org/ns/prov#value | - You can build a 2 x 2 foot former with its own oven for under $200, if you are content with a vacuum cleaner as a vacuum source. (he is fine for thin plastic.) If you want a high-vacuum system for forming thick plastic, the cost will be somewhat higher, depending mostly on how good a deal you find on a vacuum pump.If you want to know how to make large, inexpensive vacuum formers, the troopers are
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