The manual three-coordinate measuring instrument​ is also a type of coordinate measuring instrument. Its main operation process is that the user holds the main shaft with his hand and moves him back and forth along the X, Y, and Z axes. When measuring, it is necessary to pay attention to the measurement pressure between the probe and the workpiece.

The work plane was not noticed. Especially when the programming hand picks the coordinates for the initial construction, if the working plane is not switched to the straight line used to build the coordinate system, it is likely to cause the rotation direction to deviate greatly or be invalid, and almost all such programs cannot run or collide.