文档介绍：Overview概观
A design engineer uses CAD (Computer Aided Design) software to create a part drawing, containing all features and dimensions required to manufacture a part.
设计工程师采用CAD（计算机辅助设计）软件创建一个零件图，包含制造零件所需的所有功能和尺寸。
Computer Aided Manufacturing (CAM) evolved from the need to manufature using numerically controlled machine tool. Once CAD drawing is complete, it can be imported into CAM software for further use. Using various functions withing the CAM software, the programmer selects various lines, circles, surfaces or other entities from the imported CAD drawing and then develops cutting sequences, or tool paths, that simulate actual machinig of those entities.
计算机辅助制造（CAM）从需要使用数控机床来manufature演变。一旦CAD图纸完成后，它可以被导入到CAM软件继续使用。使用各种功能withing的CAM软件，程序员选择不同的直线，圆，表面或从导入CAD图纸等实体，然后开发切割序列或***路径，即模拟这些实体的实际machinig。
The most CAM applications, the tool path that is generated for each cutting sequence is placed into a file in a specific order and syntax, almost like a structured language. This file is called a Cutter Location Data (CLDATA) file. It contains various commands, as well as X, Y, Z coordinate values, and in the case of four and five axes machines, will also contain tool vector I, J, K values used to determine the angle of the tool in relation to the part.
大多数CAM应用，即对于每个切割序列生成的***路径被放入一个文件中的特定顺序和语法，几乎像一个结构化的语言。此文件被称为刀位数据（CLDATA）文件。它包含各种命令，以及X，Y，Z坐标值，并且在四和五轴机的情况下，也将包含I，J，K的值用来确