1, buy a generator with power of 200w and rated speed of about 400rpm;

2. Some ABS pipes can be cut into blades, which can be properly polished and smooth after cutting, as shown in the following figure:

3. Find a metal disk to connect the generator and blades, that is, the hub in the generator;

4. Punch holes in the blade and metal plate. Pay attention to the best matching when punching holes, such as:

5, you can find a hub cover for the hub, which can prevent the screws from being exposed to the wind and the sun, and at the same time, it can also play the role of diversion;

6. Make a bracket for putting the generator, just wood, and then fix the generator with iron wire or iron sheet;

7. As a connecting rod, it is best to install a bearing; Then make a tower with water pipes, and the wires connected to the generator can just pass through this hole; Finally, connect the tower with the generator and fix it with cables.