New robot grip twists, turns, and rolls objects in tight spaces

Yale University researchers have developed a novel robotic hand, called the Sphinx, that significantly enhances a robot’s ability to grasp and rotate objects in tight, complex spaces. Unlike traditional robotic wrists that rely on three degrees of freedom (roll, pitch, yaw) but are mechanically complex and positioned away from the object, the Sphinx integrates these motions into a single spherical mechanism. This design allows the robot to perform precise maneuvers—such as twisting open jars, turning door handles, or screwing in light bulbs—more efficiently and closer to the object without moving the entire arm. Notably, the mechanism operates without sensors or cameras, relying purely on its mechanical design to achieve smooth, multi-axis rotations. This innovation addresses a major limitation in robotics by enabling machines to work effectively in cluttered or unpredictable environments, bridging the gap between industrial robots and adaptable robots suitable for homes, hospitals, and disaster zones. The Sphinx’s ability to handle delicate and complex tasks in confined spaces represents a significant step