Hardware

Koch v1.1 Arm

The Koch v1.1 arm is a low-cost, open-source robotic arm design by Alexander Koch, built from 3D-printed parts and Dynamixel servomotors and typically assembled as a leader-follower pair for teleoperated demonstration collection. Popularized through Hugging Face's LeRobot ecosystem, it became a common entry point for hobbyists and researchers experimenting with imitation learning on hardware costing a few hundred dollars.

Why it matters for physical AI

Sub-thousand-dollar teleoperation hardware radically widened who can collect real demonstration data, seeding a community-scale supply of manipulation datasets and reproducible robot learning experiments.