How to use paper cups as fans?
The methods of using paper cups as fans are as follows:
1. Prepare paper cups and fan blades. Choose a paper cup with a certain rigidity and cut off its bottom. Then, use colored paper or plastic sheets to cut into the shape of fan blades, and try to keep the size and shape of fan blades uniform.
2. Install the battery and motor. Put two batteries into the battery box, and pay attention to the position of the positive and negative poles. Connect the wire end of the motor to the corresponding interface on the battery box to ensure firm connection.
3. Install the fan blade and motor. Stick the fan blade on the output shaft of the motor with adhesive tape to ensure that the fan blade can rotate freely. Then fix the motor on the side of the paper cup, using adhesive tape or other fixing methods.
4. Confirm the assembly. Check whether the wiring of the motor is correct, and then insert the battery box into the battery slot. Twist the fan blade slightly to confirm whether it can rotate freely and whether the motor works normally.
5. test the fan. Put the paper cup vertically and turn on the battery box switch. You will be able to see the fan blades start to turn, creating a breeze.
6. Improve the paper cup fan. You can decorate the paper cups according to your personal preference. You can use colored paper, stickers or colored pens to finish the paper cups, which makes the paper cup fans more personalized.
The purpose and significance of the paper cup fan:
1. Dispel the hot air: In the hot weather in summer, we often feel sultry and uncomfortable. The paper cup fan can generate a breeze by rotating the fan blades, which helps to dispel the surrounding hot air and makes us feel cool and comfortable.
2. Reduce the temperature: The breeze of the paper cup fan can reduce the surrounding temperature, especially in the case that there is no air conditioning or only windows can be ventilated, the paper cup fan can help reduce the indoor temperature and provide a comfortable environment.
3. Entertainment and relaxation: Making paper cup fans is an interesting manual activity, which can stimulate children's creativity and hands-on ability. When using the paper cup fan, observing the rotation process of the fan blades and hearing the sound of the breeze can bring a relaxed and pleasant feeling.
4. Environmental protection and energy saving: Compared with the traditional electric fan, the paper cup fan needs less power because it uses a small motor and battery. The materials used for making paper cup fans are also relatively simple and environmentally friendly, and can be recycled.