Introduction: Simple Wind Turbine
In this Instructable I am going to show you how to make a wind generator or turbine out of household items.
1. First I looked for the two main parts: the propeller ( in my case it was a old fan blade ) and a permanent magnet motor. I have tried to use motors that werent permanent magnet and I got bad results.
2. Then you need a long piece of pvc pipe (I used 1/2 inch) but the diameter of the pvc pipe really depends on the diameter of the shaft you are going to use
3. the rest of the parts I found laying around like all of the metal and the plastic for the fin
4. You will also need a hot glue gun
Step 1: The Motor
Im not sure where I got my motor it was in my parts bin but make sure it is a permanent magnet motor. I put a small gear on the shaft of the motor and a larger gear on the shaft going to the fan blades. Look at the picture and it explains itself.
A simple test to find out if your motor is good enough for a wind turbine:
1. Get your motor and if you have access to a shop vise place it in there VERY LOOSELY as not to damage it ( or you can just hold it in your hand )
2. connect your multimeter to the terminals on the motor and set the multimeter to a low DC voltage setting
3. with the multimeter still connetced, spin the motors shaft with your fingers as fast as you can and if the reading is more than or at least 3-4 volts...you have a good motor for this project
Step 2: The Fin
Just like the last picture, this one explains itself. The fin is a piece of plastic cut into a triangle
Step 3: The Fan Blade
Like I said before the blades are off of an old house fan. and I just drilled out the center to fit the shaft I am using. If you have to drill out the hole in yours, make sure you drill it perfectly straight because it will wobble if you dont and will end up destroying your turbine.
Step 4: Putting It All Together
The end result...YAY it worked! I got 25 volts out of it in a 15 mph wind which is good enough for me. When you make yours, dont be expecting what I got because it makes a big difference on what motor you use, the size of the fan blades, and lots of other things too.
Hopefully you will get good results too.
Step 5: My Experimental Turbine
This was one of my first turbines that I made and it did work ( if you consider 2 volts good enough ) but it didnt work good enough for my
needs so I made a really good one shown in this instructable. The pictures on this step are of one of my first ones.