How To Use A Three-dimensional Coordinate Measuring Machine

The measurement methods of a three-dimensional coordinate measuring machine (CMM) can usually be divided into contact measurement, non-contact measurement, and contact and non-contact measurement.
Among them, the contact measurement method is often used to measure machined products, pressed products, metal films, etc. In order to analyze the processing data of the workpiece or provide the original information of the workpiece for reverse engineering, it is often necessary to use a three-dimensional coordinate measuring machine to scan the data points on the surface of the workpiece to be measured. Taking the three-dimensional FOUNCTION-PRO three-dimensional coordinate measuring machine as an example, several common scanning methods and operation steps of the three-dimensional coordinate measuring machine are introduced.
The scanning operation of the three-dimensional coordinate measuring machine is to use the PC DMIS program to collect data points in a specific area on the surface of the measured object. The area can be a line, a face, a cross section of a part, a curve of a part, or a perimeter at a certain distance from the edge. The scanning type is related to the measurement mode, the probe type, and whether there is a CAD file. The "Scan" option on the control screen is determined by the status button (manual/DCC). If the DCC method is used for measurement and a CAD file is available, the available scanning methods include Open Linear, Closed Linear, Patch, Section and Perimeter scanning; if the DCC method is used for measurement and only a wireframe CAD file is available, the scanning methods include Open Linear, Closed Linear and Patch; if the manual measurement mode is used, only the basic Manul TTP Scan method can be used; if the manual measurement method is used and a rigid probe is used, the available options are Fixed Delta, Variable Delta, Time Delta and Body Axis Scan.