Modified FM Chalkalis Energy Multiplier - 1330% Efficiency
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The weight is 10 pounds and is 30" or 2.5 feet from the axle for a total of 25 ft. lbs. The motor is pulsed with a 125 msec pulse at 90 RPM through the momentary switch as shown. The remainder of the rotation draws no power.
Another thing to keep in mind is that the speed of the drive motor is fixed. There is only a "high" and "low" setting on the drill. In this video its on the low setting at about 300 rpm. The difference of radii of the drive wheel and friction plate limit the rotation to around 90 rpm. With a variable speed motor and much stronger structure I could increase the speed and the output power.