[monty1540]

I believe that the wheels are indeed mounted in the wrong orientation. The roller that contacts the ground (opposite of the ones we can see) is at 90 degrees to the ones visible on top. To avoid being spun in circles by other robots, the rollers which contact the ground must have their sub-axles (the roller axles) arranged in an O shape. The reason I suspect these are reversed is that we are looking at the top of the wheels and it looks like they are set up correctly, but if you follow the rollers around underneath you'll notice the roller axles are at 90 degrees from those on top that we can see. The issue with the current setup is that the robot has no rotational traction, if another robot were to hit the robot on a corner, it would spin around [relatively] freely with little or no ability for the driver to compensate. Along the same lines, you will also have trouble rotating in place using the drive motors.