The laser sensor is mounted on the movement system of the machine. During laser scanning , the CNC system of the machine moves the sensor line by line on the prototype of the object. The sensor measures the distance (z coordinate) to the object surface.
The data acquisition of the sensor and sensor movement is synchronized (XY coordinates), the result is sent to the PC via USB port.
Thus the XYZ coordinates determine the location of the surface. The system creates a digital prototype, which is saved as a point file as well as a conventional STL format, which can be used for further processing with CNC.