*I TAKE NO RESPONSIBILITY IF YOU BREAK SOMETHING TRYING THIS*
If you are in over your head, take a step back and decide if its worth it. Anyways, on with the tutorial.
You will need, at the very least, a soldering iron
(Pen style like that one is fine, and inexpensive), some flux core solder wire, quite a lot of normal wire, electrical tape, some glue (hot glue is fine), and your LEDs + resistors*. You also need some way to make a hole in the side of the fan, like a drill with a plastic cutting bit. Make sure the bit is about the same width as the LED, but a little wider is fine.
* EACH LED needs a resistor, otherwise this system wont work. Dont be afraid to cut resistor wires shorter, they work no matter what way they are used. LEDs are a diode, so be careful how you install those as they only work one way.
First, drill four (or more, if you want more LEDs in the fan. Four is standard) evenly spaced holes into the side casing of the fan.
The red lines represent where you CAREFULLY
drill to make the holes. Be very careful not to hit the plastic blades, hurting the blades means more noise and less life.
Once your holes are drilled, slot the LEDs into place. Dont glue them, just put them in to make your wire length. Run two wires, both need to wrap around the whole fan.
The yellow line represents 1 of 2 wires that need to go all the way around the fan. Note how it is one strand of wire, and it doesnt connect to itself. That is important, and the shorter end could be cut off after the last LED to make the wire last longer as well as look cleanerSuper basic soldering guide for the next step
(Basically heat the two things you want to join (wire and LED leg in this case) melt solder to attach the two heated parts, remove solder wire, allow joint to cool).
Next up is getting the LEDs installed and wired up. Slot the LEDs back into place, no glue again. Make sure all of them face one way, say flat spot to the left. This keeps your + and - on the correct side, so you dont have any wired backwards. solder all of the legs on one side to one of the wires you just made, and all of the legs on the other side to the second wire. these two wires MUST NOT TOUCH
. Now let the solder cool,
Now, assuming all of your LEDs have the same resistor you posted, they need to run in parallel to a 12V power source. A spare Molex plug can be used for this.Molex pinout
, pay careful attention to the way the plug is oriented. You want the +12 and the GND for your uses. Either GND works, both do the same thing. Two ways to go about hooking up your LEDs for power, the cleaner way and the less clean way
Cleaner way: Insert the wire into the correct plug on the molex, solder wire to the plug. Looks a little nicer, but is a lot harder to do without messing up the plastic housing.
Messy yet effective way: Chop the molex plug off, solder the wire directly to the wire it needs to hook up too (+ to +, - to -) and then insulate all of the bare connections with electrical tape.
Either way you do it, you now need to go back and ensure you see no wire poking out. If its exposed, put electrical tape on it.
Final step, put a blob of hot glue to hold the LED in place, and your newly lighted LED fan (Assuming everything is correct) should light up when you turn on the computer. The fan itself needs some form of power as well, your extra LEDs dont pull power from the fan.
That all looks complex, but once you have your parts in front of you it will make a lot more sense. Take your time, double check your LEDs all line up properly and are plugged into the right part of the Molex, and make sure you leave no bare wire exposed. Good luck
And if you don't understand something, ask for clarification. Id rather explain something in more detail than have you assume something incorrect and have it not work.Edited by M3nta1 - 9/29/13 at 9:14pm