Hexapod parallel positioners provide many advantages such as higher stiffness, faster response / settling and significantly reduced mass. This version is a custom example of the many systems we provide. The high vacuum compatible version of this precision 6-Axis parallel positioning system was developed for the inspection of mirrors. This hexapod system was also equipped with linear encoders for enhanced accuracy. Details on how parallel kinematic hexapod robots are different from traditional 6 axis robots.