According to Jiang Zheyuan, technical leader of the development team, performing a backflip is harder compared to a frontflip as human feet are longer in the front. To enable the robot’s backflip action faultlessly, the team came up with innovative hardware designs to ensure the robot’s stability. For example, the heavy joints of the humanoid’s limbs are placed closer to its crotch to make it easier to rotate in the air.
“This joint is not connected to its thigh, but to its knee by a connecting rod. By moving the joint upward, we minimized the inertia of its legs,” Jiang explained. Powerful rotors and lighter materials are used to build the robot and give it substantial strength.