CAD Skill for Claude Code

A Claude Code skill for generating parametric 3D-printable models using CadQuery. Describe a physical object, and Claude will write a parametric script, export STL, render previews, and iterate with you until it's right.

Read the full write-up: I Taught Claude to Design 3D-Printable Parts. Here's How

Installation

mkdir -p ~/.claude/skills
git clone https://github.com/flowful-ai/cad-skill ~/.claude/skills/parametric-3d-printing

Dependencies

Requires Python 3.10-3.12 (CadQuery's OCC kernel does not have wheels for 3.13+):

python3.12 -m venv .venv && source .venv/bin/activate
pip install cadquery trimesh pyrender Pillow

Files

File	Purpose
SKILL.md	Skill definition and workflow instructions for Claude
preview.py	Headless STL to multi-view PNG renderer (trimesh + pyrender)
design-review.md	Visual inspection checklist and printability analysis

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Created by Nicolas Chourrout from Flowful.ai