Build your own motor (video) . Khan Academy
In this video we show you how to build a simple motor.
Gold Mining Equipment . eBay
Find great deals on eBay for Gold Mining Equipment in Mining Equipment. . 9' These plans will show you how to build your own 9' Trommel on a trailer. . RP 4 can process up to 300 lbs. of black sand magnetite or pulverized rock with little or no losses. Uses ½hp, 1725 RPM, 115V, 8.5Amp, 60Hertz, 980 Watts Motor.Get Price