Scientists build robot that can soar and roll on just two actuators

Researchers at the Singapore University of Technology and Design have developed ATOM, a novel dual-mobility robot that operates using only two actuators to achieve both flight and ground movement. Unlike most hybrid robots that rely on multiple motors, gears, or transformable frames, ATOM’s design employs two counter-rotating actuators enabling it to take off, fly directionally, roll on the ground, and perform turns with high energy efficiency. Its mono-wing structure acts like a spinning wheel in flight, capable of rotating clockwise or anticlockwise, a rare feature among similar designs. On the ground, ATOM uses its frame for navigation and employs a reverse thrust mechanism to handle resistance during turns, enhancing control and maneuverability. ATOM addresses several limitations seen in previous hybrid robots. Earlier mono-wing robots struggled with ground friction, directional flight constraints, and the inability to self-right after landing upside down, often requiring manual intervention. In contrast, ATOM’s wheeled frame reduces drag on rough surfaces, its