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Quick and Dirty Hand Held "Tesla Coil"

This is a very dangerous hand held high voltage generator. I built it from an auto ignition coil, power relay and a broken power drill. I call it a Tesla coil because that is what an ignition coil...

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A less boring easter egg

Easter eggs are SO boring, they just lay there doing nothing. But with a few items from the junk box a boring Easter egg can become an entertaining object. You will need: A plastic easter egg A toy...

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Printing a Robot Arm

Back in 2006, a client of mine wanted to make a robot arm to play Go. The idea was to allow remote play on real boards with the robot arm moving the stones for the remote player. Two arms would be used...

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