The material rotates on a spindle. A grinding or carving tool will make the shape because it turns. CNC Lathes are used to generate symmetrical objects like spheres, cones, or cylinders. Lots of CNC machines are multi-functionality and Mix every type of cutting. At times, there can be technical confusion https://simonhxman.shoutmyblog.com/37379561/an-unbiased-view-of-precision-metal-cutting