This book shows you step-by-step how to build a vacuum forming machine capable of forming sheets of plastic up to 12” x 15” and 1/4 inch thick. You construct the frame from ordinary angle iron, and the book gives sources for all the unusual parts. The book explains the difference between “positive” and “negative” molds, and why you might want to use each type. Dozens of illustrations and photos. Vincent R. Gingery, 106 pages, 1999. 1 Each |
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