Launch HN: Adam (YC W25) – Open-Source AI CAD
Not a prototype. Adam's open-source AI CAD agent generates parametric 3D models from text—and runs entirely in-browser.
Why it matters
A YC W25 startup is shipping a working AI agent that converts natural language into CAD code (OpenSCAD), making mechanical design accessible to non-engineers and democratizing an enterprise software category dominated by Autodesk and Dassault.
The key facts
7 to knowOpen-source Text-to-CAD platform (CADAM) with live demo and browser-based execution
Generates parametric 3D models from natural language + image references
Outputs OpenSCAD code with interactive parameter sliders; exports STL, SCAD, OBJ, GLB, FBX, DXF
Model-agnostic via Vercel AI SDK: supports Claude, Gemini, OpenAI; Gemini 3.1 Pro outperforms in internal evals
Fully in-browser compilation (OpenSCAD to WebAssembly) + Three.js rendering; no server-side CAD processing needed
Supports BOSL/BOSL2/MCAD libraries; planned expansion to build123d and CadQuery for constraint-driven modeling
YC W25 cohort; repository open for contributions
Go to the source
Hacker Newsgithub.com
Publisher excerpt: Hey HN! I'm Zach from Adam ( We're building AI agents for mechanical CAD software. We’ve built the company on two fundamental beliefs: - AI will be the primary medium for creating mechanical designs just like it is in software today. - The best paradigm for CAD generation is to generate CAD as code…