2. The CNC system is a controller for CNC machine tools. Japanese FANUC (Fanuc Mitsubishi, Siemens, China Guangshu, Beijing Kaidi, etc. It is widely used in China.
3. NC programming is one of the main contents in the preparation stage of NC machining, which usually includes analyzing parts drawings and determining machining technology; Calculating the tool path to obtain the tool position data; Write NC machining program; Manufacturing a control medium; Proofreading procedure and first article trial cutting. There are two methods: manual programming and automatic programming. In short, it is the whole process from part drawing to obtaining NC machining program.
4. If you want to learn, it is recommended to learn CNC lathe or milling machine. You can find a better job in the future. You can learn without a foundation. In fact, operation and programming are not as difficult as you think. You need someone willing to teach you.