Show HN: Hackerscad – script 3D solids in a C/JS-like language, with MCP server

Category: devtools

Tags: cad, parametric-modeling, mcp, code-as-model, 3d-printing

Score: 6.8/10 (Innovation: 8, Technical: 5, Documentation: 8, Utility: 6)

Hackerscad is a parametric CAD tool that lets users define 3D solids using a small C/JS-like scripting language, with a bidirectional editor that writes code as you manipulate models visually. It includes an MCP server for AI agents, extensive libraries for mechanical parts, and exports to multiple formats. The project is innovative in its code-first, AI-integrated approach to solid modeling, though its technical implementation relies on OpenCascade and is in an early stage.

Target audience: mechanical engineers, makers, CAD users, AI agent developers

Repository: https://hackerscad.com · D · GPL-3.0 · 13 stars

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