Most of us has a lot of scrap parts lying around, most are just taking dust and space. This project takes the junk away and replaces it with a dangerously beautiful light show. Now why dangerous? This project uses a laser from an old DVD player – and yes if your eyes gets exposed to its light it could damage your retina. After building one these make sure to direct it to a wall and no eyes should be in its path.
A Basic stamp is used to control the speed of 2 motors, each motor is driven by an NPN transistor. The first motor is agled at 4 degrees while the second is at 6 degrees – Varying these angles would also vary the size of the projected laser image. Each motor has a mirror and they are spinned in a random fashion – which produces the amazing projected pattern.
I hope you guys find a safer laser source than a DVD and a more controllable light show like the ones where you can load patterns into.