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HumanoidRainbow Robotics2024KR

Rainbow Robotics RB-Y1

Dual 7-DOF-arm mobile manipulator with a 6-DOF torso/leg on a wheeled base, sold as an AI and teleoperation research platform.

activeBuyL2 Sim-verifiednot buildable

Difficulty index

9.5/13
9.5
Index breakdown
Classhumanoid+5
Costunknown · midpoint+1.5
DOF20 DOF+2
Partsunknown · midpoint+1
How the index works

Top of the ladder. This robot lives on the humanoid domains.

Specimen photographs

5 items
  • Rainbow Robotics RB-Y1 studio render, three-quarter front view
    Studio render of the published MJCF, the model's zero pose. Geometry only; colours are the model's own materials.Rendered by Hyperspawn from mujoco_menagerie/rainbow_robotics_rby1 (Apache-2.0) · Hyperspawn render · source
  • Rainbow Robotics RB-Y1 studio render, side view
    Side view of the same MJCF render, the model's zero pose.Rendered by Hyperspawn from mujoco_menagerie/rainbow_robotics_rby1 (Apache-2.0) · Hyperspawn render · source
  • 4 s turntable of the MJCF studio render.Rendered by Hyperspawn from mujoco_menagerie/rainbow_robotics_rby1 (Apache-2.0) · Hyperspawn render · source
  • RB-Y1 Function Introduction레인보우로보틱스 (Rainbow Robotics) · official video, embedded · source
  • Dual-arm Mobile Manipulator RB-Y1 ( Highlight )레인보우로보틱스 (Rainbow Robotics) · official video, embedded · source

Spec card

9/13 known
Degrees of freedom
20
Height
140 cm
Mass
131 kg
Payload
3 kg
Speed
1.5 m/s
Battery
1250 Wh
Actuators
Rainbow in-house joint modules
Compute
Dual-PC (real-time robot PC + user PC with ROS 2)
Sensors
Built-in wrist force/torque sensors (v1.2); optional camera

Not in the registry: runtime, price, bom total, part count. Left blank rather than guessed.

What you learn building it

  • +Whole-body control
  • +Dozens of actuators on one bus
  • +Balance and fall handling
  • +Safe bring-up of a full-size machine
  • +Testing in simulation (URDF/MJCF) before touching hardware

Openness

30/100
  • not publicCAD
  • not publicBOM
  • not publicFirmware
  • publicSim model
  • publicSoftware
  • not publicPolicies

Score 30/100 computed from what is public: CAD 25, BOM 20, sim 20, firmware 15, software 10, policies 10. Hardware license: Proprietary. Software license: Apache-2.0.

Repos & models

URDF ↗MJCF ↗MuJoCo Menagerie ↗
Site

Build it

Closed hardware. Buy link only.

humanoidrobot.build/rainbow/rby1 · Closed hardware. Buy link only.

Simulate

Load it in the browser simulator and train a policy before building.

Open on humanoidrobots.training ↗

Next rung

None. This is the top. Find people building it on humanoidrobots.team.

This is the top of the ladder.

NoteConfig A (listed) is 131 kg / 20 DOF / 1,250 Wh; config M is 170 kg / 26 DOF / 2,500 Wh. Payload is 3 kg per arm. Rainbow Robotics is the HUBO lineage. The Daejeon HQ and 2024 year are not from fetched pages.

Sources

  1. [1]Rainbow Robotics RB-Y1 pagechecked 2026-09-24
  2. [2]rby1-sdk repochecked 2026-09-24