What is the geometric accuracy of CNC lathe?

Geometric accuracy includes shape accuracy, geometric accuracy of mutual position and geometric accuracy of relative motion. The surface shape of the workpiece processed on the lathe depends on the relative motion path between the tool and the workpiece, and the tool and the workpiece are directly driven by the executive part of the CNC lathe. Therefore, the geometric accuracy of the CNC lathe is the basic condition to ensure the machining accuracy. Each type of digital control lathe has its own geometric accuracy requirements. Geometric accuracy generally includes: axial rotation of the main shaft, radial circular run-out of the main shaft, mutual perpendicularity of the movement of each coordinate direction, the equal height of the main shaft taper hole axis and the tailstock taper hole, etc