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The conversion of an old computer to a burning laser is one of my favorite DIY projects out there, and it's something I've done a few times now. As old computers are full of goodies, they contain most of the parts needed for a DIY red laser build. For most computers, you get a 250mW red laser diode from the DVD burner, a nice PSU, and some good heatsinks. The only extra parts needed are an AixiZ module and and LM317/resistor, which are only a couple bucks. For this particular build, there was no DVD burner, so I just used a $2.50 open can red laser diode, but you get the idea.

This video shows the building process, as well as some burning tricks. Enjoy!!


http://www.youtube.com/watch?v=fj7EcDA73Bs