This Instructable will teach you how to cast an aluminum slingshot capable of great power and suprising accuracy. The actual casting method used is "lost foam casting", in which foam is carved into the final design and buried in sand. Metal is poured into the foam, vaporising it and filling the mo...By: PopsicleGhoul
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from Instructables: exploring http://ift.tt/1qWWc3e
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