How to make a hand-crank electric fan
In the hot summer, hand-cranked electric fans have become an environmentally friendly and practical cooling tool. This article will introduce you in detail how to make a simple hand-crank fan, and attach recent hot topics and hot content on the entire network to help you better understand the current trends.
1. Steps for making hand-crank electric fan
1.Prepare materials: You need the following materials to make a hand-crank fan:
| Material name | quantity | use |
|---|---|---|
| Small DC motor | 1 | Drive fan blade |
| Plastic or wood blades | 3-4 pieces | Generate wind force |
| Handle handle | 1 | Provide power |
| Battery box | 1 | Storage of electricity |
| wire | Several | Connect the circuit |
2.Assembly steps:
- Fix the blade to the motor shaft.
- Connect the motor to the hand handle to ensure that the hand handle can drive the motor to rotate.
- Connect the battery box to the motor through wires, be careful not to connect the positive and negative poles in reverse.
- Test whether the hand-cranked electric fan can operate normally.
2. Hot topics and hot content on the entire network in the past 10 days
The following are hot topics and hot contents that have attracted much attention from the entire network recently:
| Hot Topics | Popularity index | Main discussion content |
|---|---|---|
| World Cup Qualifiers | 95 | The performance and qualifying situation of football teams from various countries |
| Climate Change Summit | 90 | Response to global warming |
| New breakthroughs in AI technology | 88 | Application of artificial intelligence in the medical and finance fields |
| Celebrity Divorce Incident | 85 | The reasons and subsequent impact of a well-known star |
| New energy vehicle subsidy | 80 | Government subsidy policy adjustments for new energy vehicles |
3. Advantages and disadvantages of hand-crank electric fans
1.advantage:
- Environmentally friendly and energy-saving, can be used without electricity.
- Simple to make and low cost.
- Suitable for outdoor activities or emergency use.
2.shortcoming:
- The wind is small and the cooling effect is limited.
- Manual operation is required and may become fatigued after long-term use.
4. Summary
Hand-cranked electric fan is a simple and practical DIY project suitable for use in insufficient power or outdoor environments. Through this article, you can easily master the production method and improve it according to your needs. At the same time, understanding recent hot topics can also help you better grasp social dynamics.
I hope this article will be helpful to you and I wish you success in making it!
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