Step 1: Disclaimer and what you need
first of all the disclaimer:
***Disclaimer*** The following is for informational purposes only, I take no responsibility for what you do with this knowledge.
it is just a prototype in the pictures, i did not care the welding and soldering so its a bit a mess. :)
what you need:
- 1x DC-Motor 10 or 12V (10 is better)
- 3x 6A diodes (in my case i needed 6A diodes, you will select yours according to the power of your motor)
- you can use a diode-bridge instead of the 3 Diodes.
- some meter of wire
- 1x old Hi-Fi.
- 1x switch(optional)
- 1x plane model propeller
Step 2: How it works
if we apply this current coming from the hifi to a DC-motor it will only vibrate, and maybe play the music. basically the theory behind a DC motor is the same like on a speaker, but in rotary way instead of linear way. by adding the diodes, the current will only flow in on direction, so the motor is going to be "pushed" always in the same direction and not backwards. basically what happens is that when your car ingame or your coaster is going faster, the motor and the tires are louder, and that makes the motor spin faster blowing more air against you.
ATTENTION! this kind of propellers are only helt in place by pressure. the motor MUST spin clockwise (on a NORMAL propeller) else it is blowing in the wrong way, and the force generated by the air's resistance could make the propeller come off and shoot into your face! if the direction is correct, then the air is going to stick the propeller on the motor even more!