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Industrial Robots Keep the Modern Factory Moving

IEEE Spectrum Robotics

Conventional six-axis industrial robots typically run a series of cables along the outside of the robotic arm to control power consumption, movement and other dynamic functions. These cables are usually housed in a plastic or rubber tube or tied together using materials as rudimentary as rubber bands or duct tape. As the robotic arm twists, turns and bends, the cables themselves can get tied up in knots or even fray or snap from the force of the machine's movement. Automotive industry experts estimate that it takes an average of five hours to replace a standard corrugated hose at an estimated cost of $10,000 a minute to the manufacturer. This problem of keeping cable movement static while attached to a dynamic robotic device has been a vexing one for engineers -- but what if the cables could move with the robot, making the same twisting and bending motions without twisting and bending themselves?