A jet propane torch can be assembled with a few fittings and parts borrowed from a welder and gas grill. Setting up your own metal foundry starts with a propane torch. Using gas fittings and a few ...

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This article was taken from the November 2011 issue of Wired magazine. Be the first to read Wired's articles in print before they're posted online, and get your hands on loads of additional content by ...

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