# Introduction {% embed url="" %} ## What is RUKA? RUKA is an open-source robot hand for researchers, hobbyists, and anyone who wants to build it! All parts are either 3D printed or off-the-shelf. Since RUKA is tendon-driven and has no joint encoders, fingertip and joint angle control is learned by putting a Manus motion capture glove onto RUKA and then mapping the position readings to the motor positions. A model is available for users without a Manus glove who cannot collect their own data. ## What's in this documentation? This documentation has two main sections: 1. Hardware - this includes materials needed for RUKA and all the instructions for assembling the hand 2. Software - this covers the startup of the software for controlling the hand, and the documentation is also available on the git repository If you have any questions or feedback, please join our [Discord](https://discord.gg/9wggHhmYdg) or email us at --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ruka.gitbook.io/instructions/introduction.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.