The XR20 rotary axis calibrator works in conjunction with XL-80 and XM-60 laser systems providing highly accurate, repeatable rotary axis calibration for stages, jigs and machine tools. It consists of an integrated angular retroreflector mounted on a precision servo-controlled axis. The angular position of the axis, and the optics relative to the main body housing, is controlled by a very high accuracy encoder system with the scale directly machined on the main bearing. Read more
