镂空双稳态陀螺-螺纹版/Hollow out bistable gyroscope - threaded version

镂空双稳态陀螺-螺纹版 注：转轴改为螺纹安装，旋紧即可   之前那个版本，是在网友的建议下打个孔从原来的杯垫改的，有很多的问题。转轴和铰链容易断，这次改为螺纹转轴，加强铰链，优化公差，并将其镂空，稍稍显着好看些😁 Hollowed-out bistable gyroscope - threaded version Note: The rotating shaft has been changed to a threaded installation, simply tighten it   The previous version was modified by drilling a hole based on user suggestions from the original coaster, but it had many issues—such as prone-to-break pivot shafts and hinges. This time, we switched to threaded pivot shafts, reinforced the hinges, optimized tolerances, and hollowed it out for a slightly more aesthetically pleasing look. 😁