Introduction: USB Fan
Step 1: Things You Need
Materials you need for this project:
- FAN (from old computer)
- Piece of cable
- USB connector (or cable, then also use red/black wires)
- Switch
- 2x 3/16 inch screw and bolt
- Shrink tubing
Tools you need:
- Hot Glue gun
- Soldering iron
- Pliers
- Hot air gun
Step 2: Prepare Fan
I used an old 12V DC fan from a scrap computer.
You can also buy them on E-Bay for a few dollars.
Cut out the plug of the fan, then remove the yellow cable.
Yellow cable is used for measuring RPM.
Step 3: Mounting the Screws
I attached the screws to the top to get a proper angle.
By using different lengths you can determine a good angle.
Step 4: Mounting the Switch
Glue the switch on the fan housing with hot glue.
Step 5: Connect Cables to Switch
start with the stripping of the cable.
I used the red and purple wire from a universal cable (when using USB cable you need red and black wire).
Connect the red (+) wire of the fan with the switch.
Connect the red (+) wire of cable with the switch.
Connect black wire from fan with the purple (black USB) wire from cable.
Use shrink tubing to work it off.
Step 6: Connect Cable to USB Plug
Now solder the red cable to the +5V terminal and the purple (black USB) wire to the GND terminal.
Use shrink tubing to work it off.
Step 7: Ready!
USB Fan is now ready!
See the end of the video for testing result!