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Renishaw's machine checking gauge (MCG) (as shown above) provides an easy way to monitor the volumetric measurement performance of your co-ordinate measuring machine (CMM). The MCG is an effective complement to existing standards for CMM verification and can be used as an interim checking gauge in accordance with international standards BS EN ISO 10360-2.

Based on a simple alternative to the ‘ballbar principle', the MCG provides fast, automatic machine evaluation (Go/No go checks) on a regular basis. The MCG can also be used for machine characterisation and, in some instances, software compensation of errors found.