This is a Proof of Concept version of Shawn Frayne's Windbelt built from hard drive parts. I knocked it out in a couple of minutes because I got tired of waiting for someone else to do it ;-)
This is a quick and dirty instructable.
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Step 1: You Will Need ..
A hard drive
Step 2: Salvage the Voice Coil and Magnets From a Hard Drive
We'll skip the disassembly step, it's simple enough.
Step 3: Assembly and Operation
Use a nail through the ball bearing in the voice coil to attach the coil to a piece of wood.
Mount the magnets around the coil just as they were in the HD.
Tie a long length of ribbon to the heads on the voice coil.
Solder a couple of pieces of magnet wire to the contacts of the voice coil.
Solder the other ends of the magnet wire to a LED.
To operate, hold the wind belt in front of a fan with one hand and dynamically tighten the belt with the other, to light the led takes a fairly low frequency ( And consequently high amplitude).
Future steps, frame, rectification