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How to Make a Homemade Laser Cutter thumbnail

Homemade laser cutters may not cut through metal, plastic, wood or stone but can burn paper or cut through a sheet of thin wax. The parts used to build the laser cutter are.

How LED's Work? An LED is a special type of diode that is specifically optimized to give off light, usually in the visual or infrared spectrum, as electricity is passed through it. Tooling Parts @

How LED's work - A light-emitting diode (LED) is a two-lead semiconductor light source. It is a pn-junction diode, which emits light when When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes wi