Renishaw plc is a British engineering company based in Wotton-under-Edge, England. The company's products include coordinate-measuring machines and machine tool products. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. The company was founded by Sir David McMurtry and John Deer in 1973. McMurtry had needed to measure fuel pipes on a prototype jet engine: at the time, coordinate-measuring machine sensors featured rigid styli, which required manual positioning on the surface and which yielded poor repeatability when measuring delicate components. To meet this need, McMurtry invented a touch-trigger probe device, which he then patented. The probe featured an elegant 'kinematic' location for a spring-loaded stylus, providing a highly repeatable seated position for the stylus combined with the compliance needed to measure such components. More information...
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