可动引擎钥匙扣 Articulated Engine Keychain

2024.10.08 Update: 修正了模型的点火顺序，并优化了几处容易卡顿的地方  Corrected the ignition sequence of the model and optimized several areas prone to stalling ：

这是一个四缸发动机模型，一体3D打印出来，可以活动。有两个版本，一个是带孔的，可以作钥匙扣，另一个没有带孔，请按需要打印。可做成单色也可做成多色。

It is a four cylinder engine model that is 3D printed as a whole and articulated. There are two versions, one with holes that can be used as a keychain, and the other without holes, please print as needed.Can be made into monochrome or multi-color.

建议使用PLA打印，这能提高打印的成功率。如果打印出来的模型转动起来不顺畅，可以多转动几圈来磨合，也可以尝试让3D打印机先做下动态流量校准和流量比例校准（一般不用）。It is recommended to use PLA for printing, which can improve the success rate of the print. If the printed model does not rotate smoothly, you can try rotating it several times to wear it in, or you could attempt to perform dynamic flow calibration and flow rate adjustment on the 3D printer beforehand (though this is generally not necessary).

使用前先把辅助打印的部分去掉。Remove the auxiliary printing part before use.