You know the problem. You are ready to melt some metal in your microwave oven, and you don’t have any crucibles. Not to worry. [Shake the Future] will show you how to make your own. All you need is ...

If you have an excess of soda cans lying around—or just looking for a cool project to work on—this mini foundry can melt metal and doesn't cost very much to build. Melting things is fun, and this ...