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CMM

​A coordinate measuring machine (CMM) is a device that measures the geometry of physical objects by sensing discrete points on the surface of the object with a probe. Various types of probes are used in CMMs, including mechanical, optical, laser, and white light. Depending on the machine, the probe position may be manually controlled by an operator or it may be computer controlled. CMMs typically specify a probe's position in terms of its displacement from a reference position in a three-dimensional Cartesian coordinate system (i.e., with XYZ axes). In addition to moving the probe along the X, Y, and Z axes, many machines also allow the probe angle to be controlled to allow measurement of surfaces that would otherwise be unreachable.

​The Metropolitan Borough of Dudley is a metropolitan borough of West Midlands in England. It was created in 1974 following the Local Government Act 1972, through a merger of the existing Dudley County Borough with the municipal boroughs of Stourbridge and Halesowen. The borough borders Sandwell to the east, the city of Birmingham to the south east, Bromsgrove to the south in Worcestershire, South Staffordshire District to the west, and the city of Wolverhampton to the north.

Being a metropolitan borough Dudley is effectively a unitary authority, with the exceptions of Transport for West Midlands, (publicly branded as West Midlands Network), fire and police services, and the local government pension fund (West Midlands Pension Fund), which are jointly run by the seven metropolitan boroughs of the West Midlands county.

For Eurostat purposes, Dudley is a NUTS 3 region (code UKG36), and is one of seven boroughs or unitary districts that comprise the "West Midlands" NUTS 2 region.[2]

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