This tutorial is a set of classic tutorials carefully recorded by Master Duan who graduated from Shenzhen Baoshan Mould School in CNC programming in 2005 and has been engaged in CNC work for more than 10 years. The tutorial includes software introduction, understanding of CAD drawings, actual 2D drawing, checking the drawn 2D drawing, actual drawing 3D drawing, and then compiling the NC program of this workpiece in detail, and finally explaining Mc9.1 in detail. For post-processing. Make your learning easier and more comprehensive. The tutorial cases are all practical cases in the factory. The trainees only learn useful and practical ones and have a lot of experience sharing in the course. It is a good set of tutorials that is worthy of everyone's serious study!