Robot arms

advanced · $1,200 to $2,300

Desktop six axis arm with machined aluminum links, geared closed loop steppers and a Teensy controller, built from kits or self-sourced parts.

advanced · $500 to $800

Fully 3D printed 5-axis teaching arm with belt-driven joints, NEMA steppers and an Arduino Mega running modified Marlin.

intermediate · $477 to $560

Dynamixel-based leader and follower arm pair, the first LeRobot reference arm; pricier than SO-101 but uses ROBOTIS servos.

beginner · $288 to $360

Metal-bracket STS3215 leader and follower arms for LeRobot; still supported but deprecated in favor of SO-100/SO-101.

intermediate · $1,710 to $2,160

Five-servo DYNAMIXEL desktop arm with a parallel gripper and full ROS 2 support, often paired with TurtleBot3 for teaching.

advanced · $750 to $1,150

3D printed six axis desktop arm with industrial style belts, planetary gearboxes and open Python control software.

beginner · $232 to $330

The original LeRobot leader and follower arm pair; now deprecated in favor of SO-101 but uses the same servos.

beginner · $230 to $330

Low-cost 3D printed 6-DOF arm pair (leader plus follower) for teleoperation and imitation learning with LeRobot.

advanced · $300 to $450

Open source 3D printed six axis arm driven by NEMA 17 steppers and GT2 belts, controlled with G-code like a 3D printer.

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