These renderings were taken from a previous challenge problem assignment. The task was to construct a device that could measure the center of gravity of Nanosatisfi's 3U CubeSat to within +/- 0.5 mm precision in a one week time frame.
Though a mostly theoretical design, I believe that these renderings best showcase my CAD (Autodesk Inventor, SolidWorks) abilities.
The device operates by giving an extremely stiff and frictionless system (use of gas bearing and electromagnets), to apply a "seesaw" type mechanism to measure center of gravity (COG) displacement via a measured and observed moment. An active force rebalance transducer, precision fixture, and use of precision rotary table makes the system incredibly stiff and eliminates many sources of lean and runout errors that would otherwise compromise the system.
