Kathy Hochul plans to introduce a proposal that would require all 3D printers sold in the state to include software that would block the production of ghost guns. But is it feasible?

Once dominated by high-end laser trackers and fixed CMMs capable of sub-micron precision but often limited in flexibility, ...

在外牙三通这种管件中，三个方向的接口都带有外螺纹，方便与其他管道或配件连接。这种结构在流体传输系统中十分常见，既保证了密封性，又便于安装拆卸。采用曲面建模方式来构建它，能更灵活地处理那些带有圆弧过渡的复杂外形，避免实体建模时容易出现的尖锐交接或参数冲 ...