Introduction: Simple Fan
This a quick and easy way to make a little desktop or project fan with some parts most of you probably have laying around
Step 1: Misenplace
PC fan 5-12v
On OFF switch (your choice what style i went with toggle)
Power adapter (pref 5-12v)
Step 2: Prep the Project Box
There are three holes that need to put into this box.
First is on the top for the switch
2nd and 3rd on either end for the wires to go in and out of
Step 3: Choose Your Fan and Adapter
For this I had a 12v PC fan kicking around as well as a 5v cell phone charger. Now the reason i did it this way was that with the full 12v the fan was a bit louder then I wanted it to be as it was going to be sitting right next to me at work, but even though its only 5v it still pushes the air enough for the desired breeze. feel free to try different voltages, just dont exceed what the fan's input voltage is.
Step 4: Run Your Wires
Now you'll notice that the wires on the switch are soldered this was done on another project and you'll not fine anything else solidered on this, it would be better to do it that way, but I didn't want to. you'll also notice the red and black wire, this fan will not work at all if wired backwards so its a bood idea to makesure what wire's what before going too much further. In the next picture i have all the wires twisted together, going in this order:
ac adapter + to the switch
+ (red wire) from the fan to the other switch terminal
and - (black wire) to the negative wire on the ac adapter
now on most ac adapters there is some identifing mark on the + wire that gives it away on this one there is a gray dash, if your not sure direct connect to the fan before you start wiring
Step 5: TEST
Always check to makesure that the system is working before you close up the box. This will save frustration in the end. If it spins great if ot go back and check your connection.
Step 6: Finish
Close up the box, secure your switch and enjoy a cool breese