The most impressive aspect of [Jack]’s build is the mecanum wheels; the side plates for the wheels were designed by [Jack] himself and machined on his school’s Haas mill.

The thing you can see in action below is a four-wheel-drive mobile platform based on Mecanum wheels. It contains two left Mecanum wheels as well as two right ones.

That’s why there are a number of designs for wheels that can go in different directions. One of the most common is the Mecanum wheel.