Seeed reBot Arm B601 (DM / RS) price & specs

Q: How much does Seeed reBot Arm B601 cost?

Seeed reBot Arm B601 is listed at $1,436.40 – $1,799.99. Seeed store prices, checked October 2026. The B601-DM DIY kit (body motor, body structure and gripper kits) adds up to $1,436.40, and the assembled B601-DM with gripper is $1,798.80. The B601-RS costs $1,592.97 as an unassembled kit or $1,799.99 assembled. No version includes a power supply. Seeed's power adapter kits cost $64.99 (DM) and $86.99 (RS), and the Star Arm 102 leader arm is $240. The B601-DM opened for pre-order in April 2026 at $1,197 for the DIY kit and $1,499 assembled.

Q: Can Seeed reBot Arm B601 be bought today?

Yes, it is on sale. Seeed sells the arm from warehouses in China, the United States (California) and Germany, and its bundle pages showed the arm in stock in October 2026. Orders are dispatched within 1–2 business days once the product is in the warehouse. Backordered items show a 4–6 week production lead time. Neither version includes a power supply or desk clamps unless they are added to the order.

Q: Who makes Seeed reBot Arm B601?

Seeed reBot Arm B601 is made by Seeed Studio (open source). It came out in 2026.

Q: Can Seeed reBot Arm B601 be programmed?

Open source (hardware + software). Python (motorbridge), ROS 1 and ROS 2 Humble with MoveIt 2 (RS), Hugging Face LeRobot plugins, Pinocchio, Isaac Sim, web control UI.

Q: Does Seeed reBot Arm B601 have AI chat or LLM support?

Official LLM tools. Seeed's LeRobot guide fine-tunes SmolVLA, Pi0 and Pi0.5 on the arm. These vision-language-action models take a typed task instruction such as "Grab the black cube" and turn it into arm motion.

Seeed Studio (open source) Seeed reBot Arm B601 (DM / RS) (1)

Seeed Studio (open source) Seeed reBot Arm B601 (DM / RS) (2)

Seeed Studio (open source) Seeed reBot Arm B601 (DM / RS) (3)

$1,436.40 – $1,799.99

AvailablePython from a laptopLeRobot supportBrushless CAN jointsOSHWA certifiedDM and RS versions

Possibly ≤ 1 weekShipping: In stock items dispatch in 1–2 business days (Seeed).

Remote control: Plugs into a laptop through the USB-to-CAN adapter. The motorbridge Python package runs on Windows, Ubuntu and macOS, and LeRobot records datasets and runs trained policies from the host.

LEARN MORE (Seeed store, B601-DM bundle) ↗

Overview

A low-cost open brushless arm for LeRobot work, stronger and longer-reaching than servo-based hobby arms.

The reBot Arm B601 is an open-source desktop arm with six axes and a parallel gripper, made by Seeed Studio for embodied-AI learning and teleoperation. It comes in two versions with the same shape. The B601-DM uses Damiao motors on 24 V, and the heavier B601-RS uses RobStride motors on 48 V for a 2.5 kg payload. Buyers choose an unassembled kit, an assembled arm or a Jetson bundle. The optional Star Arm 102 leader arm lets a person teleoperate the arm to record demonstrations, much like the SO-101 but with larger brushless joints.

Every joint is a brushless actuator on a CAN bus, controlled from a host PC through a USB-to-CAN adapter. Seeed's motorbridge Python package, ROS 1 and ROS 2 drivers, Isaac Sim models and LeRobot plugins cover control and imitation learning, with ACT, SmolVLA and Pi0 among the documented policies. The hardware earned OSHWA certification CN000024. Since May 11, 2026 the design files have been under CERN-OHL-W-2.0 and the software under Apache-2.0, replacing the non-commercial license used at launch. Seeed notes that its MIT-mode control API has no software joint limits and recommends staying within about 70% of the reach.

Type: Robot arm · Desktop & hobby arms
Maker: Seeed Studio (open source)
Released: 2026
Price: $1,436.40 – $1,799.99
Status: Available
Best for: Ages 16+
Programming: Open source (hardware + software)

Versions compared

	B601-DM	B601-RS
Price (Seeed store)
DIY / unassembled kit	$1,436.40	$1,592.97
Assembled with gripper	$1,798.80	$1,799.99
Power adapter kit	$64.99	$86.99
Hardware
Joint motors	3× Damiao DM-J4340P + 4× DM-J4310 (incl. gripper)	3× RobStride 06 + 4× RobStride 00 (incl. gripper)
Supply voltage	24 V DC	48 V DC
Payload	1.5 kg	2.5 kg rated
Max reach	767 mm	754 mm
Weight	≈ 4.5 kg	≈ 6.7 kg
Repeatability	< 0.2 mm (±0.2 mm on store)	< 0.2 mm (±0.1 mm on store)
Bus	CAN via Damiao USB-CAN board	CAN at 1 Mbps via USB-to-CAN module

Prices checked October 2026, without power supply. The maker's repo and the RS store page disagree on RS repeatability. Both versions share the same look, wrist camera mounts and Star Arm 102 leader arm. reBot-DevArm (GitHub) ↗ · B601-DM bundle (Seeed store) ↗ · B601-RS bundle (Seeed store) ↗

Price and shipping

Seeed store prices, checked October 2026. The B601-DM DIY kit (body motor, body structure and gripper kits) adds up to $1,436.40, and the assembled B601-DM with gripper is $1,798.80. The B601-RS costs $1,592.97 as an unassembled kit or $1,799.99 assembled. No version includes a power supply. Seeed's power adapter kits cost $64.99 (DM) and $86.99 (RS), and the Star Arm 102 leader arm is $240. The B601-DM opened for pre-order in April 2026 at $1,197 for the DIY kit and $1,499 assembled.

Shipping: In stock items dispatch in 1–2 business days (Seeed). Seeed sells the arm from warehouses in China, the United States (California) and Germany, and its bundle pages showed the arm in stock in October 2026. Orders are dispatched within 1–2 business days once the product is in the warehouse. Backordered items show a 4–6 week production lead time. Neither version includes a power supply or desk clamps unless they are added to the order. Seeed store ↗

Specifications

Category	Robot arms · Desktop & hobby arms
Released	2026
Country	China
Availability	Available
DIY build plans	reBot-DevArm (Seeed Studio) · parts $1,500 (estimate) · difficulty 4/5
Programmability	Open source (hardware + software)
Built-in autonomy	None / scripted · Moves only when controlled, or plays preset motions
LLM support	Official LLM tools · Seeed's LeRobot guide fine-tunes SmolVLA, Pi0 and Pi0.5 on the arm. These vision-language-action models take a typed task instruction such as "Grab the black cube" and turn it into arm motion. reBot Arm B601-DM LeRobot guide (Seeed wiki) ↗
MuJoCo simulation	Official model · The maker's repo ships MJCF models for both the DM and RS arms, and Seeed hosts a browser-based MuJoCo digital twin of the RS version. reBot-DevArm Rebot_Arm_description ↗
NVIDIA Isaac simulation	Official model · Seeed's reBot-Isaacsim repo has USD models and mirrors the real arm's joint angles into Isaac Sim. Seeed also lists an NVIDIA sim-to-real VLA course built on the arm. reBot-Isaacsim ↗
Gazebo simulation	Maker URDF only · URDF files for both versions are in the maker's repo. No Gazebo package was found. reBot-DevArm Rebot_Arm_description ↗
Best for	Ages 16+ (estimated)
Vision sensors	No vision sensors
Actuators	Brushless / direct-drive motors
Audio	No audio
Compute type	Laptop / PC as the brain
Remote control	Python from a laptop
DOF	6 + 1 gripper
Reach	767 mm (DM), 754 mm (RS)
Payload	1.5 kg (DM), 2.5 kg rated (RS)
Repeatability	< 0.2 mm (maker repo, both versions)
Weight	≈ 4.5 kg (DM), ≈ 6.7 kg (RS)
Controller	None on the arm. A USB-to-CAN adapter links the joint motors to a host PC (Ubuntu 24.04 recommended). Jetson Orin and Thor bundles are also sold
Sensors	Joint position, velocity and torque feedback from the motors over CAN. Cameras are add-ons (RealSense D405/D435i, Orbbec Gemini, USB cameras), with wrist mounts in the repo
SDK	Python (`motorbridge`), ROS 1 and ROS 2 Humble with MoveIt 2 (RS), Hugging Face LeRobot plugins, Pinocchio, Isaac Sim, web control UI

Common questions

How much does Seeed reBot Arm B601 cost?

Seeed reBot Arm B601 is listed at $1,436.40 – $1,799.99. Seeed store prices, checked October 2026. The B601-DM DIY kit (body motor, body structure and gripper kits) adds up to $1,436.40, and the assembled B601-DM with gripper is $1,798.80. The B601-RS costs $1,592.97 as an unassembled kit or $1,799.99 assembled. No version includes a power supply. Seeed's power adapter kits cost $64.99 (DM) and $86.99 (RS), and the Star Arm 102 leader arm is $240. The B601-DM opened for pre-order in April 2026 at $1,197 for the DIY kit and $1,499 assembled.

Can Seeed reBot Arm B601 be bought today?

Yes, it is on sale. Seeed sells the arm from warehouses in China, the United States (California) and Germany, and its bundle pages showed the arm in stock in October 2026. Orders are dispatched within 1–2 business days once the product is in the warehouse. Backordered items show a 4–6 week production lead time. Neither version includes a power supply or desk clamps unless they are added to the order.

Who makes Seeed reBot Arm B601?

Seeed reBot Arm B601 is made by Seeed Studio (open source). It came out in 2026.

Can Seeed reBot Arm B601 be programmed?

Open source (hardware + software). Python (motorbridge), ROS 1 and ROS 2 Humble with MoveIt 2 (RS), Hugging Face LeRobot plugins, Pinocchio, Isaac Sim, web control UI.

Does Seeed reBot Arm B601 have AI chat or LLM support?

Official LLM tools. Seeed's LeRobot guide fine-tunes SmolVLA, Pi0 and Pi0.5 on the arm. These vision-language-action models take a typed task instruction such as "Grab the black cube" and turn it into arm motion.