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- Degrees of Freedom
- 7.0
- Maximum Reach
- 633.0 mm
- Payload Capacity
- 4.1 kg
Overview
OpenArm (OpenArm 01) is an open-source humanoid robotic arm platform intended for physical AI research, teleoperation, and contact-rich manipulation. The platform provides 7-DoF per arm and is documented with hardware specs including nominal and peak payload definitions, with manufacturing/purchase guidance available via the official docs site.
Specifications
General
- Degrees of Freedom
- 7.0
- Maximum Reach
- 633.0 mm
- Mounting Position
- any
- Drive Type
- electric
- Payload Capacity
- 4.1 kg
- Model / Platform Name
- OpenArm 01
- Documentation Tracks
- v1.0 and v2.0 (Preview)
- Arm Type
- Humanoid robotic arm / bimanual manipulator platform
- Peak Payload Capacity
- 6.0 kg
- Payload Definition (Nominal)
- Weight held for 1 minute in worst posture with arms extended; includes end-effector mass
- Payload Definition (Peak)
- Move to worst posture over ~3 s, hold 1 s, then return; includes end-effector mass
- Mechanical Joint Limits
- Yes
- Frame / Structure
- MiSUMi aluminum frame support pillars with base plate
- Base Plate Mounting Pattern
- M6 tapped hole pattern for mounting to a table/fixture
- Motor Voltage (Typical)
- 24.0 V
- Motor Voltage Range (DM8009P)
- 24.0-48.0 V
- Motor Communication Interface
- CAN
- Motor Encoder Type / Resolution
- Dual encoders; 14-bit magnetic encoder
- Motor Rated Torque (DM8009 reference for DM-J8009P-2EC)
- 20.0 Nm
- Motor Peak Torque (DM8009 reference for DM-J8009P-2EC)
- 40.0 Nm
- Motor Peak Current (DM8009 reference for DM-J8009P-2EC)
- 50.0 A
- Motor Reduction Ratio (DM8009 reference for DM-J8009P-2EC)
- 9.0
- Motor Rated Torque (DM4340 series)
- 9.0 Nm
- Motor Peak Torque (DM4340 series)
- 27.0 Nm
- Motor Reduction Ratio (DM4340 series)
- 40.0