
Obvious warning: Don’t let yoru kid play with this. Hell, you probably shouldn’t play with it. But this DIY project could make a great, and deadly, weekend project. Basically, it is comprised of a auto ignition coil, power relay and a broken power drill. The project might be a bit more than the average nerd can handle, but what the hell. What do you have to lose? It (probably) won’t kill you.
[youtube http://www.youtube.com/watch?v=mRRf1oLMOsk&hl=en&fs=1]
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