Nurb
Nurb is local agentic CAD software that lets AI coding assistants create, check, preview, and export parametric 3D-printable parts from natural-language requests.
About Nurb
Nurb gives AI coding assistants a Python-based CAD workflow for making functional 3D-printable parts. An agent writes a part as build123d code on the Open CASCADE kernel, while Nurb builds real B-rep solids, exposes parameters as live viewer sliders, and runs checks for printability problems such as thin walls, overhangs, unsupported regions, and build-volume limits.
The desktop app combines projects, AI, and the live viewer on macOS; the command-line package supports macOS and Linux and works with assistants such as Claude Code, Cursor, Codex, and Copilot. It exports 3MF, STL, STEP, or GLB files and includes tools for rendering, slicing estimates, stress checks, variants, mesh scans, and verification. Nurb is free, runs locally, and uses the user's existing AI subscription. Release v0.20.0 was current when this listing was added in August 2026.
Key Functions
Agent-driven parametric CAD, live 3D preview, printability checks, mesh scanning, stress checks, slicing estimates, 3MF/STL/STEP/GLB export
Technical Specifications
Platforms
macOS, Linux, Browser
Latest Version
0.20.0
License Type
Free
Pricing
Free
Free
Free local software; users provide their existing AI subscription or service separately.
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