3-D Sprags and Rollers
EVA Roller Wrench

This research has had both financial and logistical support from the following groups.

University of Maryland Space Systems Laboratory

NASA's Graduate Student Researchers Program

NASA/Goddard Space Flight Center's (GSFC) Director's Discretionary Fund

NASA/GSFC's Office of Commercial Programs

NASA/GSFC's Hubble Space Telescope Flight Systems and Servicing Project

NASA/Johnson Space Center

National Space Grant College and Fellowship Program

NASA Academy