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I made this vacuum cleaner for my pc keyboard since buying a mini vacuum cleaner is so un-diy ish....
Using bigger vacuum cleaners is always risky as keys could get sucked into the cleaning device, so a low power dust eater is way to go

Step 1: Things You'll Need

1 plastic bottle less than 1.2 litre

a DC motor 3 volt

USB cord

straw

duct tape

sharpie or paper cutter (careful with these!)

soldering iron

Sorry I didn't make a vacuum fan as I got it(and the DC motor) from my brother's broken bubble making toy. You could make your own using a liquid vaporizer and sim card arrangement or buy a bubble maker at any toy store or dollar store. The pictures in the instructable are pretty much self explanatory.

Step 2: Fitting the Fan

Take the USB cord and cut the end which doesn't connect with computer. You would have four wires (normally red, black, green, and white). Before soldering the red and black wires, check the polarity of the motor, where fan rotates on the side of the cups (more suction power). Use the soldering iron to make the connections permanent and while the iron is hot make a hole in the cap using it. Now the only tricky thing in this easy 'ible. Cut the side of the bottle to the length of the vacuum fan casing (as shown) and another hole on the other side of the bottle having the same shape as that of the exhaust. Insert the vacuum fan carefully, you might like to cut the slit a bit more than the fan casing.

Pull the USb cable out and tape the slit and the other side so that no air leaks. I used paper on top of the slit and tape as the slit was not able to hold the bottle effectively.

Step 3: Finishing Up

Put the straw inside the cap and also install a net/mesh on the exhaust. I used a polythene with holes in it as the idea was to make a low cost vacuum cleaner with parts lying around me.

Now connect your vcuum cleaner to USB port of your computer and use it to clean your keyboard and other stuff.

Note: It is optional to use the polythene as most of the heavier particles will settle down due to the MacGyver trick.

Please bear with me as English is my second language.

<p>Cool idea!</p>
thanks

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