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To build a laser pointer you can take a flash light, put a red bulb in it. Take up the front and make a hole in the middle. You will have a laser pointer made from home.
http://answers.ask.com/Science/Physics/how_to_buil...
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1. Choose an appropriate laser diode. The laser diode is the part of the laser pointer that produces the laser. They range in power and intensity. A laser diode from a CD player will
http://www.ehow.com/how_6659380_build-simple-laser...
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1. Put the cloth down on the work surface. Take the LED flashlight and remove the battery cap and the batteries and put them down on the cloth. Unscrew the reflector from the front
http://www.ehow.com/how_5690511_build-actual-laser...
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1. Unscrew the battery cap from the mini metal flashlight. Remove the batteries. Place the batteries and the cap aside for reassembly later. Unscrew the reflector from the front of
http://www.ehow.com/how_7803590_build-green-laser-...
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