• EV3 TrotBot – Version 2: Inspired by a Galloping Horse. In the same way that it is more tiring to do lunges than it is to simply walk, robots with bumpy gaits require more power than robots with smooth gaits. This may not be a problem at small scales, but as a robot’s weight increases, smoother gaits are required. We improved our original TrotBot walking machine by borrowing some ideas from a galloping horse.