agentcad

agentcad

A CAD design tool for coding agents (free + open source)

0upvotes
Launched June 9, 2026

About agentcad

agentcad is an innovative open-source CAD design tool tailored for coding agents, combining AI and 3D modeling to streamline the creation of manufacturable parts. It allows users to give prompts, sketches, or images to AI agents like Claude or Codex, which then generate precise build123d or CadQuery scripts. The platform goes a step further by automatically checking the generated geometry for errors, ensuring watertight and dimensionally accurate models. Its interactive viewer, along with exported STEP, STL, and GLB files, enables users to inspect, modify, or prepare parts for 3D printing or manufacturing. What sets agentcad apart is its integration of AI-driven code generation with rigorous self-validation, reducing errors and saving time in the design process. This tool is ideal for developers, hobbyists, or engineers seeking an open-source solution that combines AI capabilities with robust 3D modeling features.

Screenshots

agentcad screenshot 1
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Pros

  • Open-source, free to use and modify
  • Automated error checking and validation of geometry
  • Supports multiple export formats for versatile use
  • Integrates AI prompts for intuitive design generation
  • Interactive 3D viewer for inspection and editing

Cons

  • Requires familiarity with scripting and CAD concepts
  • AI-generated designs may need manual refinement
  • Limited user interface complexity compared to commercial CAD tools

Use Cases

1Rapid prototyping of mechanical parts
2Educational projects for learning CAD and AI integration
3Automated design validation for manufacturing readiness
4Custom 3D model generation for 3D printing
5Research and development in AI-assisted design workflows

Pricing

agentcad is free and open source, making it accessible for individual users, educational institutions, and developers interested in customizing or extending its capabilities.

Quick Info

Upvotes0
Comments1
Launched6/9/2026

Topics

3D PrinterArtificial IntelligenceGitHub3D Modeling

Makers

James Dillard

James Dillard

@jamesdillard

Alternatives

FreeCAD
OpenSCAD
Fusion 360 (personal use/free tier)
Onshape
Blender (with CAD add-ons)

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