Hexapod: 6 Axis Stages / Precision Positioning Systems based on Parallel Kinematics

• Hexapod Stages & SpaceFAB Positioners

Hexapod 6-Axis Stages, based on parallel-kinematics hexapod positioning systems provide many advantages over conventional multi-axis stages consisting of a number of indvidual single axis positioners bolted together. Parallel positioners are designed from the ground up to form a multi-axis stage system, with a dedicated multi-axis controllera and software. Advantages of a parallel kinematic 6-axis stage are typically smaller size, higher stiffness and faster response with shorter settling, better multi-axis repeatability, large central aperture possible, no accumulation of runout errors, no issues with moving cables, etc.

Precision 6-DOF Hexapods are used in the alignment of optics, in astronomy, fiber positioning, aerospace reasearch and manufacturing, precision machining, laser machining, and medical engineering and medical treatment applications.
Most of our parallel positioners are also available in high vacuum compatible configurations.

PI miCos offers two types of parallel positioning systems: classical Hexapod platforms (Stewart-Gough platforms) and SpaceFAB-type 6-DOF positioning systems. In a SpaceFAB, three XY-positioners act on a common platform by means of three constant-length struts, providing motion in all 6 degrees of freedom. The SpaceFAB design is easily customized, and can provide longer travel ranges in the XY plane compared to typical Stewart-Platform-Type hexapods, also at a lower profile. On the other hand the footprint of a classical hexapod arrangement can be smaller.
Watch several 6-axis stage / parallel robot videos.