Open Source RoboticsRobots, software & field notes

MEVITA

Based on published sources · Not tested by us ·

Overview

Ten-joint biped with purchased actuators, machined and welded metal parts, and a ROS 1 learning-to-control workflow; external hardware rights and build completeness need separate checks. [S001]

MEVITA combines a ten-joint biped with a ROS 1 control workflow and a project-specific reinforcement-learning branch. The repository configuration assigns five joints to each leg, while the linked parts list specifies six AK70-10 and four AK10-9 actuators. This is a fabrication and controls research starting point, not a build reproduced by this catalog. [S001] [S006] [S008]

Specifications

DetailDescription
TypeBiped with five controlled joints per leg.
Reported by source [S001] [S008] · Checked 2026-09-30
Intended usersResearchers equipped for metal fabrication, CAN actuator integration and learned locomotion experiments
Editorial assessment [S001] · Checked 2026-09-30
AssemblyExternal STEP manufacturing/assembly links and a parts list; complete assembly, wiring and commissioning have not been reproduced.
Availability of filenames and links is not evidence of a complete manufacturing package.
Editorial assessment [S005] [S007] · Checked 2026-09-30
CalibrationNot known
Operating systemNot known
Computer neededNot known

3D preview

Preview not available yet. A model has not yet been prepared and approved for display on this page. This does not mean the project lacks CAD files; see Source files and licenses for the reviewed source availability.

Assembly and use

Hardware and cost evidence

The linked hardware folder lists an assembly STEP file, separate manufacturing and 3D-printing folders, a parts spreadsheet and software archives. The parts sheet names welded A5052/SUS304 structures, machined A7075 components, TPU soles, a Jetson Orin Nano, two CAN-USB interfaces and a Livox MID-360. The folder and readable documents were inspected; the raw assembly-file transfer failed, so geometry, fit and manufacturing completeness remain unchecked. [S005] [S006] [S007]

The sheet's displayed sum is ¥1,727,737.8 / US$11,518.252 using its stated 150-yen conversion. Several printed parts and screws have no prices. These are source-sheet figures, not a current complete delivered quote; supplier prices, missing costs and configuration still need reconciliation. [S006]

Control and configuration boundaries

The README uses catkin and roscore, a Livox ROS driver branch, a haraduka/legged_gym training branch, policy export into models/policy.pt, and a MuJoCo --sim route. The pinned archive already contains a policy file, but its presence does not establish performance or reproducibility. Optional FAST_LIO and joystick dependencies add their own setup requirements. [S001] [S009]

There is also a concrete version check for builders: the README links AK10-9 V2.0 hardware, while parameters.py selects an AK10_9_V1p1 driver identifier. The names alone do not prove incompatibility, but the actual motor firmware and protocol parameter mapping must be verified before treating the configuration as matched. No motor commands, installations or locomotion tests were run here. [S001] [S008]

What is open and what remains unresolved

The repository has an MIT license. That does not independently settle the rights for externally hosted STEP files, weights or inherited helpers attributed to IsaacGym, LeggedGym and the T-Motor driver. The external hardware README provides links without an explicit hardware license in its inspected text. Motor “MIT mode” means the actuator's command mode, not a license grant. [S001] [S003] [S005] [S007]

MEVITA is therefore covered as a partial-source research project: useful control and model files are preserved, with hardware links and a detailed parts list, while full hardware rights, manufacturing validation and a current complete budget remain unresolved. [S001] [S005] [S006] [S009]

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.

LayerAvailability / license
mechanical designavailable · License not fully assessed
External STEP assembly and manufacturing folders are listed; explicit external hardware license and complete assembly validation not established. Raw STEP transfer to local workspace returned HTTP 403. [S005] [S007]
electronicsnot found · License not fully assessed
Purchased electronics BOM is supplied; no complete board-manufacturing source established. [S006]
firmwarenot found · License not fully assessed
Vendor actuator configuration is required; open actuator firmware source not established. Motor MIT mode is a protocol mode, not a copyright license. [S001]
softwareavailable · MIT
Root license applies as declared by repository; README attributes inherited helpers to IsaacGym, LeggedGym and a third-party T-Motor driver. Their full provenance and external training dependency terms remain separate. [S001] [S003]
model weightsavailable · License not fully assessed
Pinned archive contains policy.pt; separate weight-specific rights, training provenance and reproduced performance not established. [S001] [S009]
documentationavailable · MIT
MIT identification is scoped to repository documentation; external Drive documents do not show a separate rights grant in the inspected text. [S001] [S003] [S005] [S006]

Selected workflow trains locomotion in simulation; no separately distributed dataset is selected.

References

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

  1. S001 · haraduka / 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.

  2. S002 · haraduka / project contributors
    Repository revision and release metadata
    Accessed 2026-09-30 · c32976a31d150a333b9b1fbab456c0b8f5822cdc
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  3. S003 · haraduka / project contributors
    Repository license
    Accessed 2026-09-30 · LICENSE
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  4. S004 · haraduka / project contributors
    Pinned repository artifact inventory
    Accessed 2026-09-30 · c32976a31d150a333b9b1fbab456c0b8f5822cdc archive file inventory
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  5. S005 · haraduka / project contributors
    MEVITA linked hardware readme
    Accessed 2026-09-30 · Drive readable-text snapshot; modified 2025-05-16T01:28:25.021Z
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  6. S006 · haraduka / project contributors
    MEVITA linked hardware parts
    Accessed 2026-09-30 · Drive readable-text snapshot; modified 2026-06-12T11:10:29.727Z
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  7. S007 · haraduka / project contributors
    Linked hardware folder inventory
    Accessed 2026-09-30 · Direct-child metadata; raw STEP preservation failed with HTTP 403; no geometry validation
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  8. S008 · haraduka / project contributors
    Pinned robot joint configuration
    Accessed 2026-09-30 · scripts/parameters.py
    Source notes

    Source text inspected for the cited scoped claims; see profile claim notes.

  9. S009 · haraduka / project contributors
    Complete pinned repository filenames
    Accessed 2026-09-30 · Complete archive filename inventory; not a completeness test
    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

Revision: c32976a31d150a333b9b1fbab456c0b8f5822cdc (commit snapshot; no published stable release found). Combined hardware and software repository activity recorded 2025-08-27 [S002]

Correction guidance · Discussion is not enabled · Profile format 0.6.0-draft.1

Change history