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CCAT's Pedal Power Drill Press
The pedal powered drill press was constructed with an exercise bike with the front end under a frame that has a drill press mounted on it. The bike has a flywheel with a ninety-two tooth chainring attached to it. The chainring is this large so that the drill will spin at a high rate. A chain is used because it is more efficient. The chain and gears are all turning on a horizontal axis, but the drill spins on a vertical axis.
To make this transition, the gear from a car is used. The shaft coming out of the car buffer connects to the drill press where the motor would have attached.  This pedal powered drill press is very efficient and can perform nearly as well as a powered one. It can be used with a hole saw to cut a two inch diameter hole into a two by four and it can even drill holes through steel.
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