1/ CNC machines are computer-controlled machines that are used to create parts and products.

2/ CNC machines are used in a variety of industries, including aerospace, automotive, and medical.

3/ CNC machines are classified by the type of tool they use. The most common types of CNC machines are milling machines, lathes, and routers.

4/ CNC machines are operated by a computer program called G-code. G-code tells the machine what tool to use, how fast to move, and where to move.

5/ CNC machines can be operated manually or automatically. Automatic CNC machines are called NC machines.

6/ CNC machines are used to create parts and products with a high degree of accuracy.

7/ CNC machines can be used to create custom parts and products.

8/ CNC machines are expensive, and the cost of operating a CNC machine can be high.