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DIY Bionic Robot Dog: Progress on 3-DOF Leg Shoulder Joint Design

An enthusiast with three years of competitive robotics experience but no programming knowledge built a quadruped robot dog by hand using 3D modeling and soldering, and has so far presented the intermediate design results for the leg shoulder joints. Each leg has a three-degree-of-freedom structure: two axes at the shoulder and one at the elbow, driven by two mg90s servos (shoulder longitudinal, elbow) and one sg90 servo (shoulder lateral). The author is soliciting criticism and suggestions, and will later disclose more design plans and robot dog component selection.

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