Small Fan
Intro: Small Fan
Small electric fan from spare parts.
STEP 1: Parts
What you will need:
- small electrical motor and its power supply (I used a 12v old typewriter motor)
- switch
- bridge (4diodes in case you have an AC power source)
- wire coat hanger
- 2 hose clamps
- bit of rubber tubing to fit over coat hanger wire
- a plastic case (vhs, dvd, console game)
- small electrical motor and its power supply (I used a 12v old typewriter motor)
- switch
- bridge (4diodes in case you have an AC power source)
- wire coat hanger
- 2 hose clamps
- bit of rubber tubing to fit over coat hanger wire
- a plastic case (vhs, dvd, console game)
STEP 2: Motor and Stand
- cut the wire hanger and bend it to look like a stand
- slip 4 cut pieces of rubber tubing over the wire hanger wire (they are used to absorb motor vibration and to stop the fan from moving by itself on smooth surfaces)
- put the two hose clamps over the motor and slip the stand wires underneath the clamps
- tighten the clamp and align the stand to look straight
- attach switch (and bridge rectifier if needed (small box below switch in photo))
- wire all components together
- test operation of motor and switch assembled
- slip 4 cut pieces of rubber tubing over the wire hanger wire (they are used to absorb motor vibration and to stop the fan from moving by itself on smooth surfaces)
- put the two hose clamps over the motor and slip the stand wires underneath the clamps
- tighten the clamp and align the stand to look straight
- attach switch (and bridge rectifier if needed (small box below switch in photo))
- wire all components together
- test operation of motor and switch assembled
STEP 3: Fan Blade
- draw a simple blade on a plastic case
- cut the blade out, drill a small hole in the center of the blade
- cut 4 notches around center of blade
- twist blade to resemble a propeller
- force the blade onto the motor shaft (this is critical, because you want the blade to spin with the motor)
- test
Final notes:
Use of a plastic blade is safer then using a metal or wooden one, this way you don't need a shroud over the blade. 12v motor is ideal for several reasons: 1. You can use the fan in your vehicle or at home, 2. 12v gives enough power to have a small fan that is actually powerful enough to cool you off, 3. 12v motor is also small enough to make the whole fan less than 5"l x2"w x 7"h making it a mini fan. I have seen fan of this size that put out a fraction of wind and cost more.
- cut the blade out, drill a small hole in the center of the blade
- cut 4 notches around center of blade
- twist blade to resemble a propeller
- force the blade onto the motor shaft (this is critical, because you want the blade to spin with the motor)
- test
Final notes:
Use of a plastic blade is safer then using a metal or wooden one, this way you don't need a shroud over the blade. 12v motor is ideal for several reasons: 1. You can use the fan in your vehicle or at home, 2. 12v gives enough power to have a small fan that is actually powerful enough to cool you off, 3. 12v motor is also small enough to make the whole fan less than 5"l x2"w x 7"h making it a mini fan. I have seen fan of this size that put out a fraction of wind and cost more.
11 Comments
supergirlmia 7 years ago
cool instructable work fine fine craft mens ship
kx 60 9 years ago
invert360 16 years ago
Idea Studio 22 15 years ago
jongscx 17 years ago
Idea Studio 22 17 years ago
Oorspronklikheid 17 years ago
Idea Studio 22 17 years ago
Oorspronklikheid 17 years ago
Idea Studio 22 17 years ago
N6OZG 17 years ago