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Stephen McCrory

PROFILE

Stephen Mccrory

Sean McCrory contributed to ihmc-open-robotics-software by developing features for humanoid robot control, including hand contact support in the Kinematics ToolBox and VR hand state management, using Java and ROS2. He standardized URDF model naming and improved data cleanliness for the Alexander robot in ihmc-alexander-sdk, while introducing dynamic control parameter calculators to enhance stability. Sean refactored mesh geometry, transitioned path planning to CPU-only for deterministic behavior, and integrated height map-based footstep adjustments. His work emphasized maintainability by removing legacy components and stabilizing CI. Throughout, he applied skills in 3D modeling, algorithm optimization, and software engineering to deliver robust, maintainable solutions.

Overall Statistics

Feature vs Bugs

92%Features

Repository Contributions

17Total
Bugs
1
Commits
17
Features
11
Lines of code
514,812
Activity Months4

Work History

August 2025

8 Commits • 5 Features

Aug 1, 2025

Aug 2025 monthly summary for IHMC robotics projects. Focused on delivering geometry fidelity, CPU-first planning, environment configurability, height-map based footstep adjustments, and codebase cleanup to improve reliability and maintainability. Highlights include geometry refinements for the Right Thigh mesh, CPU-only path planning enabling deterministic behavior, configurable environment layouts, height-map driven step adjustments, and removal of legacy components to reduce maintenance burden.

July 2025

4 Commits • 2 Features

Jul 1, 2025

July 2025 monthly work summary for ihmc-open-robotics-software: Delivered key model and control improvements with a focus on reliability, maintainability, and release readiness. The work centers on updating the Alexander robot model to URDF V1, introducing dynamic control parameter calculators, and maintaining CI health during investigations.

June 2025

3 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary focused on delivering targeted capabilities for Alexander deployment and improving data quality across two IHMC repositories. Key features were implemented with clean version control traceability and set the foundation for easier maintenance and broader rollout.

January 2025

2 Commits • 2 Features

Jan 1, 2025

January 2025 monthly summary for ihmc-open-robotics-software: Delivered two high-impact features that enhance stability, balance, and VR interaction, with clear business value for safer teleoperation and improved operator experience. Key changes include hand contact support in Kinematics ToolBox (KST) enabling locking of end-effectors and enforcement of a feasible center of mass when hands act as point contacts for balance, and VR hand control bindings with visual feedback alongside stabilization of SAKE publisher calls for VR hand state control. Commit references: 43598ab37ed48358a12156fb50f7ba7cef825b5e; 2608aaf2dd8b21de24bcb386da80ce710d2c1d06.

Activity

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Quality Metrics

Correctness88.4%
Maintainability90.0%
Architecture87.2%
Performance80.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++GradleJSONJavaURDFXML

Technical Skills

3D Graphics3D ModelingAPI DesignAlgorithm OptimizationBuild System ConfigurationCode RefactoringComputer GraphicsControl SystemsData CleaningEmbedded SystemsEnvironment SetupFull Stack DevelopmentGeometryHumanoid Robot ControlJava Development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

ihmcrobotics/ihmc-open-robotics-software

Jan 2025 Aug 2025
4 Months active

Languages Used

C++JavaGradle

Technical Skills

3D GraphicsControl SystemsHumanoid Robot ControlKinematicsROS2Robotics

ihmcrobotics/ihmc-alexander-sdk

Jun 2025 Aug 2025
2 Months active

Languages Used

URDFXMLJSON

Technical Skills

Data CleaningRobot Description Language (RDL)Robot ModelingURDF3D ModelingComputer Graphics

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