> For the complete documentation index, see [llms.txt](https://panav.gitbook.io/robotics-handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://panav.gitbook.io/robotics-handbook/computer-aided-designs-and-simulations/3d-modelling-cad.md). # 3D Modelling CAD {% embed url="" %} Yordan Tsvetkov introduces the basics of computer-aided design (CAD) using Onshape, one of the most popular CAD platforms. The tutorial walks you through completing the middle section of the biomimetic finger in just 15 minutes, while teaching you how to navigate Onshape and use fundamental sketching and 3D modeling tools. Key topics include: * Navigating the Onshape interface * Creating sketches on planes and faces * Using geometry tools (Rectangle, Line, Circle, etc.) * Modifying sketches (Trim, Mirror, etc.) * Applying constraints * Using Extrude and Cut Extrude * Adding Chamfers and Fillets

Chamfering Edges

This video is the first half of the CAD segment. The next video will complete the finger’s design and introduce additional Onshape tools and commands. By the end of the series, you’ll have a solid foundation for exploring the exciting world of robotics. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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://panav.gitbook.io/robotics-handbook/computer-aided-designs-and-simulations/3d-modelling-cad.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.