Descripción de 5 Dollar DIY Laser Show:
Here's a neat party trick, make your own LASER SHOW for only 5 bucks! All you need is: 1) Rubber string, 2) A cheap pen laser, 3) A mirror or two, 4) A relay or two, 5) A rare-earth magnet. All you do is dismantling the relay into an electro-magnet, glue your rare-earth magnet to the tiny mirror, glue the mirror with the magnet to a rubber-string, stretch it onto something so the mirror can vibrate freely, and tighten as needed. Place your newly modified (relay) electro-magnet right behind the rare earth magnet, make sure it doesn't touch - but have some distance between it, maybe 2 mm or so. Now, aim the laser at the mirror (make sure YOU don't get blinded by it!), and have it reflect onto a white surface (or fluorescent for that cool effect if you have a blue one). And connect your electromagnet to an audio source of some sort. Use a 24v relay if you're connecting it to a stereo. 3-5 volt relay if you're connecting it to an audio headset output, make sure you turn the VOLUME ALL THE WAY DOWN - so you don't blow the output of your amplifier/stereo. Have fun!
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