Compliant 6-Degree-of-Freedom Precision Motion Stage: The Hexblade Positioner

Video Description

This video introduces a six-degree-of-freedom (6 DOF) flexure-based precision motion stage, called the Hexblade Positioner. It is a fully compliant version of a hexapod (i.e., Stewart Platform) that can be positioned and oriented as desired over relatively large ranges and speeds with nanometer repeatability (i.e., high precision) due to the deformation of its metal flexure bearings. To learn more about its applications and how it works, see the published Precision Engineering journal article at this link: https://www.sciencedirect.com/science/article/pii/S0141635922000770 The reference for the paper is: [1] Yang, Z., Lee, R., Hopkins, J.B., 2022, “Hexblade Positioner: A Fast Large-range Six-axis Motion Stage,” Precision Engineering, 76: pp. 199-207 Part files to fabricate this flexure system can be downloaded on Thingiverse at this link: https://www.thingiverse.com/thing:5436903 Acknowledgements: Special thanks to my students Zhidi Yang and Ryan Lee for helping to fabricate and test the Hexblade Positioner. I’m also grateful to DARPA Program Officer Bill Carter for funding this work and to Prof. Rob Candler and Prof. Pirouz Kavehpour for their collaborative support with the funded effort. Also special thanks to Prof. Dannis Brouwer for allowing us to use a clip from his YouTube video: T-Flex: Fully flexure-based hexapod with motor current controller - YouTube And for the creative common’s images and animations used: https://commons.wikimedia.org/wiki/File:Simulator-flight-compartment.jpeg https://upload.wikimedia.org/wikipedia/commons/3/38/Simulator-flight-compartment.jpeg Ethan Arnold, CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0), via Wikimedia Commons Donate to help support my channel: If you’d like to make a one-time donation, you can use the following link: PayPal.me/FACTsMechDesign Thank you for your support! It is much appreciated and helps enable me to make more content. Disclaimer: Responsibility for the content of this video is my own. The University of California, Los Angeles is not involved with this channel nor does it endorse its content.