1. First, cut the bottom of the empty coke bottle horizontally.
2. Then cut the coke bottle longitudinally, divide it into six parts, turn it over in the direction of the bottle cap and flatten it by hand.
3. Fold the folded blades 90 degrees again, and pay attention to all the blades folding in one direction.
4. Wipe the bottle cap and bottle clean, then take another bottle cap, the glue stick melts, and the bottle cap sticks to the coke bottle in the direction corresponding to the other bottle cap.
5. Put the wire on the gas stove, burn it red, and then burn a hole in the center of both bottle caps, which is slightly larger and convenient for operation.
6. Pass the wire through the centers of the two bottle caps, twist the wire into a circle at one end with a vise to prevent it from falling off and pulling it out, and then try it on the electric fan to see if it works freely.
7. After completion, you can fix it on the balcony and run on your own when there is wind.