Vassar Robotics

A gearbox-free robotic arm that eliminates the gear train from every joint, removing backlash, stiction, speed reduction, and wear drift from recorded data and control loops. It targets robot learning teams, developers, and engineering groups at robotics companies and research labs seeking clean demonstrations and zero-shot sim-to-real transfer. The product is positioned as a direct-drive alternative that provides a pure actuator signal without compensating for mechanical artifacts, with one uniform actuator model across all joints.

Key features

• Gearbox-free direct drive joints
• Full human speed demonstrations
• Zero backlash position feedback
• Current directly correlates to torque
• No wear-induced drift over time
• Enables zero-shot sim-to-real transfer
• Uniform actuator model from wrist to hip