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