
Developed end-to-end gripping capabilities for a robotic arm in the OpenHUTB/nn repository, focusing on both mechanical modeling and control logic. Leveraging MuJoCo, Python, and XML, the work included designing a modular arm base, implementing upper and lower arm bending, and evolving the gripper from a three-finger to a robust two-finger structure. Comprehensive test scripts were created for joint limits, stability, and energy simulation, while documentation and code quality were enhanced to support rapid iteration and onboarding. The approach emphasized maintainability, with streamlined main logic, detailed annotations, and improved configuration, enabling safer, production-like deployment and easier team collaboration.
OpenHUTB/nn — Monthly Summary for 2026-03 Overview: - Focused on delivering end-to-end gripping capabilities for the robotic arm, improving usability, reliability, and test coverage, with substantial documentation and tooling enhancements to enable rapid iteration and safer production-like deployment. Key features delivered: - Mechanical arm base model and初步动作实现 (gripping) with upper/lower arm bending; adopted official arm model and standardized naming. Notable commits include: 7d58c81396a972010a2a85059ae23fad2f0f3bae, e173cb241b79f10391b860293e7a064e6a23ccf2, 6d2fca48ffd8693301c1722dd6b95266e9e7e318, 3a44be26a24a7cc9c64166cd6d92c86163936189. - 抓取机构与手部结构设计改进:新增抓取目标对象、扩大右臂关节、添加手部抓取碰撞体和接触约束,设计三指包围式抓取结构,后发展为真正两指夹持器。关键 commits: 907d8346b38dcda4cbaa738cd1494b14f487311a, 4a33b144402a3df489773b4fe25dbbc85892c181, 665c9212fe2c7f71fafb4cefe9cefaa1bf388c92. - 文档与代码质量提升、 tooling 支持:完善README、环境描述、代码高亮、README更新、注释增强、脚本化控制与测试脚本等。 代表性提交包括: 756bd819c5a90cacb2019345e26805e6d62c00d7, 43c6ccb431588aea1493b01ade556b356fd943f1, 130a115863c8758c52f15aa145b8bb54b356b122, 9183ba2a68733a6f8470d88fa907da4bb6a8a6a2, 8a1ff50a4bbe9ee5cf7741fe919dc9f06ec959d2, b0eb11f8d211ce67b14abb3cea027a431f21bddc, b8ac87a9ae48811544be65f642f5a13b24278154, 23d53ef1693531b6e7c0a9c9c2cdb42e51467b26. - 测试与鲁棒性提升:关节限位测试脚本、夹爪抓取稳定性测试脚本、关节平滑运动测试(与新阻尼参数适配)、能耗模拟脚本等,显著提高了系统可测试性。 关键提交: 8fc20ddc73a1aceacfc2d54a3c37d795053d45e3, c49244a4a3af5e5f947d809862840bf43a7543a1, 0bd798567ad05b66f643469610ad61a02f101d06, aeda13fd3c72496d2bd4233a8f6a28ddab366b0b. - Main 文件轻量化优化与注释增强:简化逻辑、降低复杂度、保留核心功能,同时提供更详尽的注释,使新成员更易上手和维护。 代表性提交: 438f71992008138141854b10cbd4c0959fbc565a. - 模型信息文档更新与物理参数描述:更新README,增加模型结构与物理参数的清晰描述,帮助设计评审和集成测试。 提交: 8a16e62d26fad8bdbc9d7ea89b1a02ed08a2ad2a. Major bugs fixed: - 解决多处冲突和定位不当的问题,调整躯干(torso)的pos参数及高度,使机械臂在交互中保持稳定性;统一命名为 gripping,减少歧义和版本漂移。 相关提交包含: 3a44be26a24a7cc9c64166cd6d92c86163936189, 756bd819c5a90cacb2019345e26805e6d62c00d7, 8a1ff50a4bbe9ee5cf7741fe919dc9f06ec959d2。 - 删除/整理入口脚本,修订注释,避免误用或混乱的运行路径。 相关提交: 8a1ff50a4bbe9ee5cf7741fe919dc9f06ec959d2, 438f71992008138141854b10cbd4c0959fbc565a. - 与抓取与关节的初始状态相关的配置冲突解决,确保关节限位测试与复位脚本在新阻尼参数下行为一致。 提交: 9183ba2a68733a6f8470d88fa907da4bb6a8a6a2, 0bd798567ad05b66f643469610ad61a02f101d06。 Overall impact and accomplishments: - Business value: 通过端到端的抓取和动作能力实现、测试覆盖率提升,以及全面的文档与工具支持,显著降低上线前的验证成本,提高迭代速度,提升生产环境中自动化抓取任务的稳定性和安全性。 - Technical impact: Implemented a extensible gripping framework (from base model to robust two- and three-finger grips), added comprehensive test scripts (joint limits, stability, damping adaptation, energy simulation), and improved maintainability through documentation and code quality improvements. This enables faster experimentation with new grasping strategies and easier collaboration across the team. Technologies/skills demonstrated: - Robotics modeling and control, collision and contact constraints, damping parameter adaptation, and motion shaping between arm segments. - Scripting for reset/restart, keyboard control, and automated testing pipelines. - Documentation excellence (README, environment requirements, code blocks for highlighting) and meaningful commit messages for clear traceability. - Version control discipline and collaboration across multiple commits and feature sets. Repository: OpenHUTB/nn
OpenHUTB/nn — Monthly Summary for 2026-03 Overview: - Focused on delivering end-to-end gripping capabilities for the robotic arm, improving usability, reliability, and test coverage, with substantial documentation and tooling enhancements to enable rapid iteration and safer production-like deployment. Key features delivered: - Mechanical arm base model and初步动作实现 (gripping) with upper/lower arm bending; adopted official arm model and standardized naming. Notable commits include: 7d58c81396a972010a2a85059ae23fad2f0f3bae, e173cb241b79f10391b860293e7a064e6a23ccf2, 6d2fca48ffd8693301c1722dd6b95266e9e7e318, 3a44be26a24a7cc9c64166cd6d92c86163936189. - 抓取机构与手部结构设计改进:新增抓取目标对象、扩大右臂关节、添加手部抓取碰撞体和接触约束,设计三指包围式抓取结构,后发展为真正两指夹持器。关键 commits: 907d8346b38dcda4cbaa738cd1494b14f487311a, 4a33b144402a3df489773b4fe25dbbc85892c181, 665c9212fe2c7f71fafb4cefe9cefaa1bf388c92. - 文档与代码质量提升、 tooling 支持:完善README、环境描述、代码高亮、README更新、注释增强、脚本化控制与测试脚本等。 代表性提交包括: 756bd819c5a90cacb2019345e26805e6d62c00d7, 43c6ccb431588aea1493b01ade556b356fd943f1, 130a115863c8758c52f15aa145b8bb54b356b122, 9183ba2a68733a6f8470d88fa907da4bb6a8a6a2, 8a1ff50a4bbe9ee5cf7741fe919dc9f06ec959d2, b0eb11f8d211ce67b14abb3cea027a431f21bddc, b8ac87a9ae48811544be65f642f5a13b24278154, 23d53ef1693531b6e7c0a9c9c2cdb42e51467b26. - 测试与鲁棒性提升:关节限位测试脚本、夹爪抓取稳定性测试脚本、关节平滑运动测试(与新阻尼参数适配)、能耗模拟脚本等,显著提高了系统可测试性。 关键提交: 8fc20ddc73a1aceacfc2d54a3c37d795053d45e3, c49244a4a3af5e5f947d809862840bf43a7543a1, 0bd798567ad05b66f643469610ad61a02f101d06, aeda13fd3c72496d2bd4233a8f6a28ddab366b0b. - Main 文件轻量化优化与注释增强:简化逻辑、降低复杂度、保留核心功能,同时提供更详尽的注释,使新成员更易上手和维护。 代表性提交: 438f71992008138141854b10cbd4c0959fbc565a. - 模型信息文档更新与物理参数描述:更新README,增加模型结构与物理参数的清晰描述,帮助设计评审和集成测试。 提交: 8a16e62d26fad8bdbc9d7ea89b1a02ed08a2ad2a. Major bugs fixed: - 解决多处冲突和定位不当的问题,调整躯干(torso)的pos参数及高度,使机械臂在交互中保持稳定性;统一命名为 gripping,减少歧义和版本漂移。 相关提交包含: 3a44be26a24a7cc9c64166cd6d92c86163936189, 756bd819c5a90cacb2019345e26805e6d62c00d7, 8a1ff50a4bbe9ee5cf7741fe919dc9f06ec959d2。 - 删除/整理入口脚本,修订注释,避免误用或混乱的运行路径。 相关提交: 8a1ff50a4bbe9ee5cf7741fe919dc9f06ec959d2, 438f71992008138141854b10cbd4c0959fbc565a. - 与抓取与关节的初始状态相关的配置冲突解决,确保关节限位测试与复位脚本在新阻尼参数下行为一致。 提交: 9183ba2a68733a6f8470d88fa907da4bb6a8a6a2, 0bd798567ad05b66f643469610ad61a02f101d06。 Overall impact and accomplishments: - Business value: 通过端到端的抓取和动作能力实现、测试覆盖率提升,以及全面的文档与工具支持,显著降低上线前的验证成本,提高迭代速度,提升生产环境中自动化抓取任务的稳定性和安全性。 - Technical impact: Implemented a extensible gripping framework (from base model to robust two- and three-finger grips), added comprehensive test scripts (joint limits, stability, damping adaptation, energy simulation), and improved maintainability through documentation and code quality improvements. This enables faster experimentation with new grasping strategies and easier collaboration across the team. Technologies/skills demonstrated: - Robotics modeling and control, collision and contact constraints, damping parameter adaptation, and motion shaping between arm segments. - Scripting for reset/restart, keyboard control, and automated testing pipelines. - Documentation excellence (README, environment requirements, code blocks for highlighting) and meaningful commit messages for clear traceability. - Version control discipline and collaboration across multiple commits and feature sets. Repository: OpenHUTB/nn

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