(1) Z coordinate. The movement direction of the Z coordinate is determined by the spindle that transmits the cutting power, that is, the coordinate axis parallel to the spindle axis is the Z coordinate, and the positive direction of the Z coordinate is the direction in which the tool leaves the workpiece.
(2) X coordinate. The movement direction of the X axis is the radial direction of the workpiece and parallel to the transverse pallet, and the direction of the tool leaving the rotation center of the workpiece is the positive direction of the X axis.
(3) Y coordinate. After determining the positive direction of the X and Z coordinates, the direction of the X and Z coordinates can be used to determine the direction of the Y coordinate according to the Cartesian right-handed rectangular coordinate system.
