Step 3: Soldering and Glueing

After you have cut out all necessary holes in your case, it is time to solder the fan to the battery!  Cut and strip your wires for both the fan and battery clip so that they are short enough to fit in the case without excess wire hanging out.  Then solder the red (+) wire of the fan to the red (+) wire of the battery clip, and solder the black (-) wire of the fan to the black (-) wire of the battery clip.  If you choose to, you may also cover each connection using heat shrink tubing to prevent any short circuits.  

Once you are done soldering, determine which way your fan blows air by looking for a small arrow icon on its side or by plugging in a battery to power the fan.  Next, glue the fan by its four corners to one of the two large holes you cut in the case so that it blows air out the other large hole. This way, the fan can suck air into the case and blow it through the carbon filter and out.  

After the fan is firmly glued in place, attach a 9v battery to the snap and put a dab of super glue on the top of the snap. Make sure to have the battery pushed through its hole in the case, and push the top of the snap onto the side of the fan so that it is glued in place.  The reason why you should glue the snap in place while the battery is attached to it is so that the snap is positioned correctly on the fan.  If you glue on the snap without using the battery as a guide, you may not be able to connect the battery to it through the battery's hole on the case.  Wait for the glue to dry, and then remove the battery.  
<p>how to get lots of computer fans for cheap: make friends with people from computer shops and you will get loads of computer fans just for buying him lunch.......</p>
<p>Really nice! You can also name as a smoker. And yeah it's portable..</p>
Nice. It's not the most powerful thing, but it sure is portable :)
Your 'ible looks real nice. Well laid out and easy to follow.<br>I think the only change I would make is cutting the hole slightly smaller on the hinged lid and insure that the fan is glued in place so that it blows through the lid, so that the carbon filter could be wedged between the fan and the lid to keep it in place. This would make it easy to change out as needed, without having to rip it free of the super glue.<br><br>Cheers
I would also put a switch, but I just really like switches, so there's that.
This is great! Of the experince I've had with industrial fume extractors, this operation is reversed. The fan removes the fumes from the air by sucking the fumes into the filter, and the clean air exiting through the fan.
I have one of those cases too! i got shark teeth in it one of the times i went to hawaii.
Catch 22, you need to solder, to protect yourself from solder....
great solution for some, but not for me, I guess you could call be a smoker. I smoke 2 ft. worth of solder fumes every day.
I was just accepting my slow, painful, chemically-induced death, but I might finally build one of these since its so simple. The 9V battery as a base in pure genius, man. Well done.
nice and simple, I like it.
Nice design, I've been thinking about building something like this. You may have inspired me to get off my duff and get to work!

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Bio: Student studying Electrical Engineering
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