Cast Metal Using Hot Water
That's Right! No torches or flames, just a cup of hot water. Field's Metal melts in water at a temperature of 144° Fahrenheit. Try it yourself! Make castings in plastic molds designed for making candles or soap.

Aluminum Apprentice Toolbox
Here's a practice project for sheetmetal aircraft builders. Download the drawings and the Demo 2-D CAD software.

Rooftop Luggage Box
Transport your sports equipment or luggage on top of your car in a handy storage box like this one made from surplus aluminum sheet metal and rivets.

Homemade Gauss Rifle
Build a magnetic linear accelerator to launch a steel marble at a target at high speed. The small version is designed so the speed is not enough to hurt someone.

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