Answer to Question #304953 in Mechanical Engineering for ravi

Question

Explain in brief about coordinate measuring machine

Answer 1

Conventionally, measurements were taken visually using hand tools or an optical comparator. However, these tools require significant time and have limited accuracy.

On the other hand, a coordinate measuring machine (CMM) measures the height, width, and depth of the part using coordinate processing technology. In addition, such machines can automatically measure the target, record the measured data, and obtain GD&T measurements.

A coordinate measuring machine (CMM) is either a contact model that uses touch probes, a spherical object used to perform measurements, or a non-contact model, which uses other methods such as cameras and lasers. Some models designed for the automotive industry can even measure targets larger than 10m (30 ft) in size.