Roundness is a measure of how closely a shape conforms to being perfectly circular. It is important in many industries, including manufacturing, engineering, and construction. There are a number of different ways to check roundness, including using a coordinate measuring machine (CMM), a roundness gage, or a dial indicator.
CMMs are used to measure the size and shape of objects. They are very accurate and can be used to measure roundness to within a few thousandths of an inch. Roundness gages are specifically designed to measure roundness. They are typically used in manufacturing to check the roundness of parts.
