Tag: Hexapod

Hexapod Robots in Laser Microsurgery Research

Laser micro-surgery can benefit from tracking and image-based methods that improve precision and safety. Advanced software together with stereo camera feedback allow for motion estimation reduce tracking errors.  A highly precise parallel kinematics motion system (Model H-824 from Physik Instrumente) with 6 degrees of freedom was used to evaluate the performance. More information is available […]

Hexapods and Parallel Kinematics Positioning Systems FAQs

Hexapod positioners are often referred to as Stewart Platforms. A hexapod is based on a 6-axis (XYZ, Pitch, Roll, Yaw) actuator system arranged in parallel between a top and bottom platform. PI parallel kinematics (PKM) precision positioning systems have many advantages over serial kinematics stages, such as lower inertia, improved dynamics, smaller package size, and […]

Dental Biomechanics Research Based on Hexapod 6-Axis Platform

Hexapod motion and positioning platforms have traditionally been used in engineering, optics, and physics applications for their ability to provide precision motion in all degrees of freedom and flexibility based on a programmable center of rotation. As hexapods become more mainstream, applications expand into medical fields as well. Dental biomechanics deals with the interactions between […]

High Load Hexapod Test and Assembly

Testing and Qualifying Positioning Systems for Multi-Ton Loads The nano- and micro world is not limited to microscopic loads. Optics in astronomical telescopes and semiconductor lithography equipment are getting larger and heavier, while alignment tolerances that need to be met are getting tighter. Hexapod parallel-kinematic motion and positioning systems are often used in multi-axis alignment […]

PI Hexapod chosen for LISA Pathfinder Space Mission

On December 3, 2015, the European Space Agency (ESA) launched the LISA Pathfinder spacecraft, marking the birth of the next phase of an incredible project that will one day help scientists look at the structure of galaxies and our early universe. We might even get a preview into the structure and nature of space-time itself. […]

Stacks of Single Axis Stages vs. Hexapods

When faced with a multi-axis motion application, many users stack motion stages, and in fact that is a fine approach for assemblies of just a few axes. But as applications become more complex, so do the equivalent stacks-of-stages, and very real and practical considerations begin to come into play. Stiffness.  Some stage manufacturers publish stiffness […]

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About PI

PI (Physik Instrumente) is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with fifteen subsidiaries, R&D / engineering on 3 continents and total staff of more than 1,000.

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