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The Robot Report · September 17, 2026 · On the brief until October 1, 2026

The evolution of Digit: Agility Robotics’ journey from Cassie to Digit 5

RoboticsMechanical Engineering
THE AI ANGLE
Dynamic risk evaluation and real-time behavioral adaptation around humans

Agility Robotics has transitioned its humanoid robot design from the fast, ostrich-like legs of Cassie and early Digit models to a human-like leg structure in Digit 5, prioritizing strength, battery life, and warehouse utility over raw speed. The new iteration is engineered for close human collaboration without safety ropes, dynamically assessing risk to slow down or stop as people approach. For robotics and mechanical engineering instructors, this highlights how real-world industrial deployments shift mechanical kinematic requirements from bio-inspired speed to functional payload capacity and collaborative safety.

Summary written by AI Business Lens with an AI model from the article at therobotreport.com. It is not the article, and the publisher has not reviewed it. For publishers.

THE TEACHING ANGLE
Students can examine the mechanical and control trade-offs between bio-inspired ostrich-leg morphology optimized for running speed and anthropomorphic leg design optimized for payload strength and safe human-robot coexistence.

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