The Battlebots team Bloodsport reached out to me and asked for ways to reduce the aerodynamic loading on their weapon motor when their weapon blade was spinning. I ran a CFD sim using ANSYS Fluent on the original set up and found that the loading from the drag was a very similar number to the loading reported by the team's data. I then put a chamfer on the sides of the blades and ran the sim again and this was able to reduce the loading by about half with a solution that should be easy to manufacture.
