(Renishaw: West Dundee, IL) – Renishaw, a global leader in engineering technologies, has launched its multi-DoF (multiple degrees of freedom) optical encoder system, an absolute multi-DoF encoder system that 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 with no 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.

Multi-DoF scale with two RESOLUTE encoder readheads (X, Y)

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, Renishaw’s multi-DoF encoder solution supports improved process capability and higher component yields.

Renishaw’s 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.