# \#robotics

**URL:** https://discourse.threejs.org/tag/robotics/843.md

[Latest](https://discourse.threejs.org/latest.md) · [Categories](https://discourse.threejs.org/categories.md) · [Tags](https://discourse.threejs.org/tags.md)

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## [Closed-Chain-Ik: An IK solver for parallel kinematic systems](https://discourse.threejs.org/t/closed-chain-ik-an-ik-solver-for-parallel-kinematic-systems/89829)

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**Author:** [@gkjohnson](https://discourse.threejs.org/u/gkjohnson)\
**Replies:** 2\
**Last updated:** [October 1, 2026, 10:13am UTC](https://discourse.threejs.org/t/closed-chain-ik-an-ik-solver-for-parallel-kinematic-systems/89829 "2026-10-01T10:13:54Z")

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I was surprised to find I hadn’t posted this project previously but I wanted to share my closed-chain-ik-js project from a couple years ago to implement an Inverse Kinematics solution in Javascript. While it includes bui…

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## [URDF & Xacro Loader: Libraries for parsing and rendering robot kinematic model formats](https://discourse.threejs.org/t/urdf-xacro-loader-libraries-for-parsing-and-rendering-robot-kinematic-model-formats/89590)

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**Author:** [@gkjohnson](https://discourse.threejs.org/u/gkjohnson)\
**Replies:** 0\
**Last updated:** [February 3, 2026, 3:00am UTC](https://discourse.threejs.org/t/urdf-xacro-loader-libraries-for-parsing-and-rendering-robot-kinematic-model-formats/89590 "2026-02-03T03:00:41Z")

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It’s been over eight years since I first released this from NASA JPL but I wanted to share urdf-loader and the accompanying xacro-parser for processing URDF and Xacro file formats commonly used in robotics for defining t…

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## [How to Load a .world Robot File Using Three.js in a Web Application?](https://discourse.threejs.org/t/how-to-load-a-world-robot-file-using-three-js-in-a-web-application/68154)

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**Author:** [@thantzin\_win](https://discourse.threejs.org/u/thantzin_win)\
**Replies:** 4\
**Last updated:** [July 15, 2024, 10:09am UTC](https://discourse.threejs.org/t/how-to-load-a-world-robot-file-using-three-js-in-a-web-application/68154 "2024-07-15T10:09:54Z")

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I’m working on a web application and I need to load a .world robot file using Three.js. I’ve tried using the Collada loader but haven’t been successful. Can anyone guide me on how to achieve this? The .world file I’m us…

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## [Move Stelarc with three.js](https://discourse.threejs.org/t/move-stelarc-with-three-js/116)

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**Author:** [@fraguada](https://discourse.threejs.org/u/fraguada)\
**Replies:** 0\
**Last updated:** [March 25, 2017, 6:00pm UTC](https://discourse.threejs.org/t/move-stelarc-with-three-js/116 "2017-03-25T18:00:48Z")

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http://rewiredremixed.stelarc.org/ One could move him in the arm until 18h CET today. p.s. I’m just posting cause I enjoy the work of Stelarc. This is not my work, nor do I know Stelarc personally, though I have se…