Lasers light shows are one of most popular form of club entertainment today. If you’ve ever wanted to build your own laser show, this simple five dollar DIY laser show project. Basically, reflect a laser on to a mirror physically attached to a speaker membrane. As the speaker vibrates and produces sound waves, it also vibrates the mirror which causes multiple shapes and patterns to be projected on to the ceiling and walls.

The “lasers� you see in the video are actually one “laser.� The new concepts adapted in this project lets you use one laser to produce multiple “interferences� by using a diffraction grating. By utilizing this technology you can easily produce results similar to what the pros use, at nowhere near the cost. To see the full article which includes an introduction, laser safety guide, concepts, parts, assembly, and other notes visit the tutorial.