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At CubeMars, we are excited to be part of cutting-edge innovation in robotics!
Last year, our AK70-10 BLDC motors were integral to the success of Nathan Weiss's groundbreaking bipedal robot project at Stellenbosch University, South Africa.
His thesis, Design of a Series Articulated Bipedal Robot Capable of Agile and Transient Maneuvers, aimed to develop a highly dynamic robot capable of executing complex movements such as jumping, running, and hopping across various terrains.
Why AK70-10?
In this project, the CubeMars AK70-10 motor was chosen for its:
• High torque density: Critical for handling the demanding dynamic motions of the robot, the AK70-10 provides superior mass-specific torque, ensuring precise control and smooth actuation during high-impact maneuvers.
• Quasi-Direct Drive (QDD) architecture: Our motors' low reduction ratio and high backdrivability allowed for enhanced force transparency and dynamic feedback control—essential for the robot to maintain agility while navigating challenging environments.
• Built-in control and feedback systems: Featuring integrated controllers and absolute encoders, the AK70-10 modules enabled real-time force sensing, contributing to the robot's ability to seamlessly adjust to different terrains.
Through this collaboration, the AK70-10 powered the robot to achieve new heights—literally! The robot exceeded its simulated jumping height, showcasing the AK70-10’s exceptional performance and reliability in real-world applications.
Key Features of the AK70-10:
• Built-in planetary gear reduction.
• Embedded controller utilising Field Oriented Control (FOC) and the CAN communication protocol.
• Single loop absolute 12-Bit encoder.
• High precision control with 0.1 ◦ accuracy.
• Backlash of 0.2 ◦ (12 arcmin).
We are proud to see CubeMars’ technology driving forward innovation in robotics, enabling agile and compliant locomotion on real-world terrain.