A Gear Ring for the MARS Curiosity Rover. Sadly, this is the last part for MARS Curiosity Rover project. This gear ring supports the rover head where it intersects the body. We'll machine two of these in a one-and-done approach using the super-glue technique to keep it a cost efficient, reliable work-flow process. Fusion 360 Tips, Tricks, S&F, and space replica AWESOMENESS. Let's dive in!