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Coordinate measuring machine, in fact, can be divided into three types which are automatic, semi-automatic and manual. Automatic is completely controlled by computer, while manual is completely controlled by hand. The semi-automatic does not have a fully automatic probe rotation and control system, so as long as the stylus angle needs to be changed, the probe angle must be manually changed.

CMM is a kind of high precision measuring tool, almost all parts can be measured, including the accuracy of the gauge also needs the support of the CMM. Coordinate measuring machine (CMM) is a widely used measuring instrument

Coordinate measuring machine at present is not only a kind of laboratory measurement instrument, but is widely used in machining and assembly workshop. In the automotive industry, the CMM is the necessary measuring tool of product quality assurance and quality control.

Measurement method is to get the measuring results based on a given measurement principle, the measuring method is divided into different categories, here are several common measurement methods.

The coordinate measuring machine is measured through the relative movement of the probe system and the work-piece. The probe mainly detects the three-dimensional coordinates of the work-piece surface points and obtains the final results through a series of calculations.