Step 6: Personalizing your USB Fan.

If you find the fan too plain, you can spice it up with paint, decorations, etc, anything you want.

NOTE: this instructable can be used to power practically any device that requires no more than 5.0V.

Enjoy the breeze!
I am incredibly interested in learning more about powering things using USB. I have been wondering if there is anyway to power larger devices, like things you have to plug in to an outlet. Think a computer with multiple USB ports combined as one power source could do it?
No I don't think that would work. Computers output at 5v DC. Most electronics require 120v AC. Even if you got the computer to output 12v DC and used a DC to AC converter, there still wouldn't be enough amperage.
I built my own AC to DC converter. 120VAC to 12VDC with a 3A Transformer that gives me enough juice to run 3 fans at full power.
<p>Hi please instructable or a diagram might be very helpful :)</p>
calm down there sparky....
See that key between Tab and Shift? hit it. see what happens? you don't look like a moron anymore.
actually there is a way to make it. I'm not quite sure yet. I am currently researching it. I found a site that sells them. Origin of course is from china. <br/><br/><a rel="nofollow" href="http://parco.manufacturer.globalsources.com/si/6008810248883/pdtl/USB-fan/1002235694/USB-Desk-Fan.htm">http://parco.manufacturer.globalsources.com/si/6008810248883/pdtl/USB-fan/1002235694/USB-Desk-Fan.htm</a><br/>
1. if your near a power source, use the plug socket, not your computer 2. if your away from a power source, there is no way your laptops battery would last longer than a minute 3. this is just constructive critiscism offered before you start albert einsteining what is, a bad idea love lukkbox x
<p>hi,we produce the USB mini rechargeable handheld DC fan.</p><p>My mail address: market@xinyujie.com</p>
<p>how to create a 2-3 cpu fan through USB? I only know is 1 cpu fan to USB.</p>
<p>I am new to usb. I would like to make a usb adapter to charge my GPS. Will usb work on a battery that is roughly 6 volts? Or will it only charge up to 5 volts tops?</p>
<p>how to make mini fan blades</p>
<p>how to make mini fan blades</p>
H&eacute;he, nice during these hot days! thanks :D
Here's mine. Using an old Play Station (the fat one) fan. I super glued it to a cd, and used an old pointless screw (bolt?) as a sort of pole to keep the cord in place. Put's out a considerable amount of air. I know it's sloppy, but the PS2's fan wires must have been around 30 gauge, ridiculously small. I did solder btw.<br>
Um? I was wondering it might be silly of me to ask <br>but can u tell me step by step how you made that fan work without using the ps2....I took my fan out but I'm having a hard time getting it to work if you can msg me back I would appreciate it thanx....
If I can remember right, the fan had two wires coming out, red/black (power/ground). They ran into some sort of connector, which I just snipped off. To provide the power, I used an extra usb cord. Inside this usb cor are many wires, you only need the red/black (once again, power/ground)<br><br>So first off, you need to, useing extreme care, strip the red and black wires on the fan, then set them aside.<br><br>Next, snip one end of the usb cord off (i was using an old cord to an mp3 player, so i snipped off the mini end). Strip off like a 2 inch part of the outer layer of the usb, then snip all the wires except for the red and black ones off. As you could imagine, the next step is to strip the red and black wire of the usb.<br><br>Finally, you have to try and solder the wires together (red to red, black to black). This is pretty damn tough due to the fan wires being short and thin, so you might need an extra set of hands helping you out. Tape it up when you're all done (taping the wires separately to insulate them) and plug it in to a computer usb port.<br><br><br>If you need more help go ahead and ask, I could even sketch out some diagrams if you need me too no problem.
i just an awesome project....<br>you can connect more then one fan to one USB port soo there we dont have to use resistors.<br>but can anyone explain we how must amount of energy is required to operate a FAN that you have used.<br>and then its equivalent resistance for 1 fan<br><br><br>thanks for the info
I tried and the computer went off ... so don't try this, this motor needs a resistor, but how much Ohms??<br><br>Thank You!<br>CYa! :)
Most (if not all) modern USB controllers have fail safe and short protection. I know on my computer if it find a short, windows has a popup saying that oh, BTW, you drew too much current and the hardware is now shut down... Typically a restart will turn the device back online... I noticed that knoppix did not tell me that the board shut down... I can't remember if fedora or Cent said anything... but in any case, the controller shut itself down.
I have a laptop that i took apart (took off the keyboard and stuff) and it was running while i was putting on the heat shield (not a smart thing to do) and it sparked a few times, big white and blue sparks, then it shut down. i dont know if that has a connection to that, but thats what happened.
From what I understand damage to the USB port and/or the device could result from overloading the voltage. I made a similar setup for a desktop fountain that ran on 2 &quot;AA&quot; batteries and used an LM317 adjustable regulator to drop the voltage from 5 to 3VDC. There are online calculators to figure out what resistances you need to run for a given output... Here's a link to some general info <a rel="nofollow" href="http://www.national.com/mpf/LM/LM317.html">http://www.national.com/mpf/LM/LM317.html</a><br/>
btw: no damage done at all
well today actually i shorted otu several usb ports by mistake when i was trying to do some usb fans without the proper materials and nothing happened.. windows poped up and said unplug the devise and press reset and that was it... happened about 15 times lol.... had to test it and stuff :)
Scared me to death. Did that but with a clock and it kept sparking until i unplugged it.
lol you know there is a clock on your computer already .... right? thanks for the laugh bro! x x x x
If you have like a ten or fifteen foot cord added on to it would you have to add a resistor or would there wouldn't be enough voltage to go through it?
good tutorial, i tried it with a dollar store flashlight but i think i burnt it out... now how am i supposed to look at my computer hardware?
hhhmmm... chip and the motor is much stronger than ordinary usb fan, but the problem is, this motor has a brush , the current is flowing from the brush to commutator so when you always use it the brush will worn out some of this motor uses carbon brush for longer life span, the real usb fan motor is brushless this called induction motor, same as the electric fan, the one you use is conduction motor.
u hooked up the usb cable the wrong war m8 cos you put the red onto the black which conects to the motor _____________________________________________________
i made a usb powered radio I got from dollar tree. Total cost was 2 dollars and I just twisted the wires together like I do with telecom stuff and it worked just fine. I added some electrical tape to keep it from shorting and now I have a nice little radio to listen to on my laptop. I am thinking about integrating it with the laptop. That would be fun.
Now I have a USB powered fan..... I was trying to get it to work. I went to this instructable and realized that I need the red and black wires... :D
this is very cool. I wonder if you could attach the wires to a light bulb to make a flashlight thing?
definately not a lightbulb, they take a lot more than 100mA of current. You could attach an LED with a resistor (to limit the current) though.
thet would be nice :) and then put it in a nice case too :P or you could make a flashlight ocnnected to a usb-pots (a LED one)
If you had a small enough lightbulb (like the ones in flashlights) then yes you could. It would be even eaiser to attach an LED to it.
Oh, and btw, to convert ohms to voltage.. heres your formula..<br/>V = I x R<br/>jk i wont make it that hard. this will do it for u<br/><a rel="nofollow" href="http://www.csgnetwork.com/ohmslaw.html">http://www.csgnetwork.com/ohmslaw.html</a><br/>
*goes and looks for his box fan and 24 usb cables*
You would have to convert Ohms to voltage, cause resistors are in Ohms.
Yeah; ya have to tell me which resistor to use!
Howdy, thanks for the project info. I went ahead and built a usb fan and it seemed to work, until the motor burned out. On the last note in the last instruction, you mentioned using a resistor to bring the voltage down from 5volts usb to 3 volts for the fan. I am ready to give it another shot and wondered if you could share with us what resistor you used and where we could pick one up. I looked up info on resistors and got lost quickly. Any help would be greatly appreciated! Thanks!
Ah, the dollar store. The perfect place to get cheap things to take apart. In this case, a motor, some plastic, battery contacts, LEDs and 2 cheap batteries that could run a watch for all of 10 minutes... all for a buck. I've gotta go there this week! (Not today, since it's the Mass Sales Tax Free weekend... all the Rhode Islanders swarm the state... jonesman: USB puts out 5 volts DC.
is the volts AC or DC? I tried to do this with a fan meant for a desktop computer but it was VDC, so what type of voltage comes from the USB?
Sounds good. I'd be interested in seeing the pics since I am a visual learner. :-)
There ya go finanimalguy ... to help oyu learn :P (sorry it took so long, had to go and buy a soldering iron as I am new to DIY projects)
Thats my next step funanimal guy. I'm hoping to do that this weekend (if time permits) so check back. :)
Just FYI (so you don't need to experiment next time)... Red: +5v Black: 0v Green: Data+ White: Data0 Also remember that the bus only supplies 100mA. Any more than that and the device has to request it from the host (which a dumb load will not do :P).

About This Instructable


60 favorites


More by Murf: How To Make A Cheap USB Powered Fan
Add instructable to: