Simulation Experience

Step 1 of 4

Get the Models

git clone wuji-description to fetch the model assets

Clone the wuji-description repository for the Wuji Hand 2 URDF, MJCF, USD, and STEP assets, plus the Wuji Glove URDF skeleton and STL files.

wuji-description is the model description package for Wuji Hand and related hardware, providing URDF, MuJoCo (MJCF), Isaac Sim USD, and STEP/CAD assets for simulation, visualization, and mechanical integration.

Coverage

ModuleAssets
Wuji Hand
  • URDF / MJCF / USD / meshes / simplified STEP for the left and right hands
  • ROS2 package wuji_description (launch and RViz presets)
Wuji Hand soft-pad variant
  • URDF (with ROS variants) / MJCF / USD / meshes for the left and right hands, with a soft pad fixed on the thumb (finger1_link2_softbody)
  • Simplified-collision variants (*_simplified suffix) for faster contact simulation
Wuji Hand 2 (Beta 2)
  • URDF (with ROS variants) / MJCF / USD / meshes for the left and right hands, shipped as the standalone ROS2 package wuji_hand2_beta2_description that coexists with the Beta 1 package in one workspace
  • Keeps every Beta 1 coordinate and naming convention, and adds one tactile pad link per fingertip ({l,r}_{finger}_tip_sensor_frame, where {finger} is thumb, index_finger, middle_finger, ring_finger, or pinky — a standalone MJCF body ready for force / torque sensors)
  • Revision-aware naming — robot names wujihand2-beta2-{side} and USD entry wujihand2_beta2.usd — so Beta 2 assets never collide with Beta 1
  • With-mount variant (_with_mount filename suffix, rooted at {l,r}_mount)
  • Full-hand STEP assemblies (with mount) for the left and right hands, plus palm mounting-interface STEP + A3 drawings
Wuji Hand 2 (Beta 1)
  • URDF (with ROS variants) / MJCF / USD / meshes for the left and right hands
  • 20 revolute joints per hand, using anatomical naming (thumb / index / middle / ring / pinky), rooted at {l,r}_wrist, with actuators named {l,r}_{THJ|FFJ|MFJ|RFJ|LFJ}{0-3}
  • Five fingertip query sites per hand for grasp-point queries and fingertip trajectory evaluation
  • Coordinate and naming conventions are fixed from the Beta 1 revision on — later revisions stay compatible and only update physical parameters and geometry details
  • With-mount variant (_with_mount filename suffix, rooted at {l,r}_mount)
  • Full-hand STEP assemblies (with mount) for the left and right hands, plus palm mounting-interface STEP + A3 drawings
Hand attachments
  • Impact-resistant Adapter (STL / URDF / MJCF / USD)
  • Unitree G1 mounting adapter STL
  • Direct and impact-resistant Adapter STEP, assembly drawings, and installation guide
Wuji Glove
  • URDF skeletons for the left and right hands (21 revolute joints per hand)
  • Wrist-mounted EMF transmitter base STL and fingertip receiver coil STL
  • Transmitter top-cover STEP and assembly PDF
  • Mounting attachment STEP assemblies: the Wuji Glove mounting interface, a PICO tracker adapter, and a PICO 4 Ultra controller adapter

Related Repositories

wuji-description is referenced as a dependency by the following projects:

RepositoryPurpose
mujoco-simMuJoCo simulation example
isaaclab-simIsaac Lab simulation example
wuji-retargetingHand pose retargeting

These repositories reference wuji-description through Git Submodule to keep model files in sync. To update the model, run the following command in each repository:

git submodule update --remote
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