Instructables
Picture of how to make a usb fan
items need:
1. hobby motor
2. a cd
3.  hot glue gun
4. an elmers glue stick
5. a usb cable
6. scissors
7. wire strippers
8. tape
9. a hobby motor gear
10. a fan ( i cut one out of plastic)

 
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Step 1: Step 1

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cut off the head of the usb cable that doesn't plug into the computer. then strip the outermost shell from the cable revealing the inner wires. locate the red and black wires and discard the rest. strip the red and black wires. 

Step 2: Step 2

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twist the red (+) wire and black (-) wire togather with the corresponding wires on the moter and tape each wire.

Step 4: Step 4

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slide the gear over the spindle of the motor using glue here is optional.

Step 5: The fan

Picture of the fan
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using a circular piece of plastic no bigger than three inches make eight cuts towards the center. you should have eight triangular pieces connected to each other slightly twist each piece in one direction to space out the edges.

Step 8: Final step

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plug it in!!!!



MY USB HAS 3 WIRES
ITS AN OLD MOBILE EXCHANGE DATA USB WHICK I CUT
WHAT SHOULD I DO KNOW
red is always power (or it's supposed to be)
black is always ground (see above)
tape off the other green? wire and the aluminum shielding.
zcarver (author)  munaib rumjaun2 years ago
I would strip all the wires and try different combination of each wire until you find the ones that are your power and discard the rest.
osh1142 years ago
When your using a cd and you cut it, it will generally break. But if you melt the cd lines with a soldering the cd will not break. i will try to make a instructable on how to do it this way but thats when i have time. i will make a hyperlink later on.
osh1143 years ago
I thought your fan was very creative and i made 1 that runs on a 9V battery, check it out. here is an image you can look at:
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agis683 years ago
I enjoyed your presentation. Also liked the choice of the cd-fan ....simple, effective what else?