Renishaw introduces true-absolute multi-DoF encoder system, featuring new RXMA30 1.5D scale

March 2026

Renishaw, a global leader in engineering technologies, will launch its multi-DoF (multiple degrees of freedom) optical encoder system at Laser World of Photonics China 2026, Shanghai, from 18 to 20 March 2026. Visitors to stand E7.7201 will discover an absolute multi-DoF encoder system which combines one or more RXMA30 1.5D scales with market-proven RESOLUTE absolute encoder readheads. This versatile system offers advanced multi-DoF position measurement in up to six degrees of freedom (6DoF), making it well-suited to high-performance motion systems, where accuracy, speed and repeatability are critical.

The RXMA30 scale is designed to ensure highly repeatable metrology under demanding thermal and dynamic conditions. With dedicated, separate scale tracks, machine designers can directly measure motion in the X and Y axes, without the need for complex signal processing. Absolute encoder technology removes the need for homing routines, which are often difficult on the Y axis because users have limited control of motion.

The technology allows machine builders to detect and compensate for error sources such as the straightness of linear guideways, small translational deviations, and rotational errors which are often unavoidable in precision motion systems. By enabling in-process compensation of these errors, Renishaws multi-DoF encoder solution supports improved process capability and higher component yields.

Renishaws multi-DoF encoder approach streamlines system architecture while maintaining compatibility with a wide range of serial interfaces and motion control platforms. The system provides significant versatility, enabling designers to tailor scale and readhead configurations to meet specific application requirements.

For further information on the multi-DoF encoder system and RXMA30 1.5D scale, visit www.renishaw.com/multi-dof.