ROBOTIS OP3

Based on published sources · Not tested by us · Sources checked 2026-09-30

Overview

A 20-joint research humanoid with a 2025 ROS 2 revision and an older ROS 1 software lineage that must be kept distinct. [S001]

ROBOTIS OP3 is a 20-joint humanoid built around DYNAMIXEL XM430-W350-R actuators, an Intel NUC i3 and an OpenCR subcontroller. The current manual separates its 2025 revision from the older model. That distinction affects software as well as hardware: the 2025 documentation specifies ROS 2, 250 GB storage and a different battery configuration from the older tab. A repository release number alone cannot identify the machine a lab is buying or maintaining. [S005]

Official website · Source code

Specifications

Detail	Description
Type	Biped humanoid Reported by source [S005] [S006] [S007] [S008] · Checked 2026-09-30
Intended users	Research laboratories; Experienced ROS developers Editorial assessment [S001] · Checked 2026-09-30
Assembly	Vendor package is documented as fully assembled; custom manufacturing from shared STP files remains unqualified. Reported by source [S005] [S006] [S007] [S008] · Checked 2026-09-30
Calibration	Camera settings, joint-offset tuning and walking tuning are separate documented tasks; no calibration performed here. Reported by source [S005] [S006] [S007] [S008] · Checked 2026-09-30
Operating system	2025 recovery manual: Linux Mint 22 Xfce with ROS 2 Jazzy Reported by source [S005] [S006] [S007] [S008] · Checked 2026-09-30
Computer needed	2025 manual: onboard i3, 8 GB RAM and 250 GB M.2 SSD Reported by source [S005] [S006] [S007] [S008] · Checked 2026-09-30

Assembly and use

Preserve the software route that matches the robot

The captured stable GitHub release, 0.2.1, has a README describing ROS Kinetic and Ubuntu Xenial. For the 2025 robot, the quick start instead links jazzy-devel branches and the recovery guide describes Linux Mint 22 Xfce with ROS 2 Jazzy. We preserved the OP3 Jazzy branch separately at an immutable commit and label it a development snapshot, not a stable release. Its manager package uses ROS 2 dependencies even though the branch README still carries the old compatibility table. [S001] [S002] [S006] [S007] [S009]

There is a practical documentation mismatch to resolve before installation: the recovery page writes jazzy-devl in several clone commands, while the quick-start links name jazzy-devel, the branch preserved here. The full environment also depends on separate Framework, message, demo, tool and DYNAMIXEL repositories. Those still need a jointly pinned and tested set. [S006] [S007] [S009]

Hardware files do not establish a ready manufacturing offer

The official hardware page links an OP-series archive containing an OP3 STP assembly, skin files and board PDFs; these files are now preserved locally. Their presence does not establish a complete manufacturing pack, a match to every 2025 component or a reuse license for the whole robot. The ROS package's Apache license is separate from those hardware questions. [S008] [S009] [S010]

The manual describes a fully assembled vendor package. For a future support trial, begin by identifying the exact delivered revision, its software image and the documented camera, joint-offset and walking-tuning tools. Current delivered price, replacement-part supply and our own setup or repair effort remain unverified. No robot motion, calibration or software installation was tested for this profile. [S005] [S006]

Cost

No current, complete configuration-specific build cost has been established for this profile.

Source files and licenses

Available project sources support research coverage; complete build and commercial qualification remain separate.

Layer	Availability / license
mechanical design	available · License not fully assessed STP assembly and skin archives preserved; manufacturing rights and exact 2025 configuration match not established. [S008] [S010]
electronics	available · License not fully assessed Board PDFs preserved; not a complete editable manufacturing package for NUC, OpenCR, actuators and all electronics. [S008] [S010]
firmware	not found · License not fully assessed Separate OpenCR and actuator firmware not reconciled to this configuration. [S001] [S004]
software	available · Apache-2.0 Inspected Jazzy package declaration; separate dependency repositories not fully pinned. [S009]
documentation	available · License not fully assessed Public documentation inspected; separate reuse license not established. [S005] [S006] [S007] [S008]

No learned policy or dataset selected for this platform overview.

References

Links identify the documentation and revisions used in this profile. Access dates record when each source was retrieved.

S001 · ROBOTIS-GIT / project contributors
Upstream project overview
Accessed 2026-09-30 · README.md
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S002 · ROBOTIS-GIT / project contributors
Repository revision and release metadata
Accessed 2026-09-30 · ac3c5bae613e93e322b10cbabcda866fdb438e36
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S003 · ROBOTIS-GIT / project contributors
Repository license
Accessed 2026-09-30 · LICENSE
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S004 · ROBOTIS-GIT / project contributors
Pinned repository artifact inventory
Accessed 2026-09-30 · ac3c5bae613e93e322b10cbabcda866fdb438e36 archive file inventory
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S005 · ROBOTIS-GIT / project contributors
ROBOTIS OP3 introduction
Accessed 2026-09-30 · 2025 and older tabs; distinguished in profile
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S006 · ROBOTIS-GIT / project contributors
ROBOTIS OP3 quick start
Accessed 2026-09-30 · 2025 and older tabs; distinguished in profile
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S007 · ROBOTIS-GIT / project contributors
ROBOTIS OP3 recovery
Accessed 2026-09-30 · 2025 and older tabs; distinguished in profile
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S008 · ROBOTIS-GIT / project contributors
ROBOTIS OP3 hardware
Accessed 2026-09-30 · 2025 and older tabs; distinguished in profile
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S009 · ROBOTIS-GIT / project contributors
Preserved Jazzy development branch
Accessed 2026-09-30 · Commit snapshot; not a stable release
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.
S010 · ROBOTIS-GIT / project contributors
OP series hardware archive
Accessed 2026-09-30 · OP3 file inventory; does not prove manufacturability or complete licensing
Source notes
Source text inspected for the cited scoped claims; see profile claim notes.

Research and review details

Source research only; no installation, physical build or performance test performed. No affiliate links added.

Profile edited 2026-09-30 · Sources checked 2026-09-30 · Next review target 2026-10-30

Combined hardware and software repository revision: Legacy relea · Activity recorded 2018-03-26 [S002]

Correction guidance · Discussion is not enabled · Profile format 0.5.0-draft.1

Change history

September 29, 2026 — First research profile published.