Fusion 360 QR Code Generator

A Fusion 360 add-in that generates a fully parametric 3D QR code model from any text or URL. Each dark module is extruded as an individual solid body, giving you a clean, scan-ready result for 3D printing or CAM.

Features

• Encode any text, URL, or data as a QR code
• Choose error correction level: L (7%) · M (15%) · Q (25%) · H (30%)
• Configurable module size and extrusion height
• Each module is a separate solid body — no merging, no topology issues
• Hot-reload support: Stop → Run picks up code changes without restarting Fusion

Requirements

• Autodesk Fusion 360
• segno — install once into Fusion's bundled Python:

& "C:\Program Files\Autodesk\webdeploy\production\<version>\Python\python.exe" -m pip install segno

Replace <version> with the folder name matching your Fusion install (find it under C:\Program Files\Autodesk\webdeploy\production\).

Installation

1. Clone or download the repository into your Fusion 360 add-ins folder:

%APPDATA%\Autodesk\Autodesk Fusion 360\API\AddIns\

2. Install segno as shown above.
3. Open Fusion 360 → Utilities → Add-Ins (Shift+S) → select qrcode → click Run.

Usage

1. Switch to the Design workspace (Solid tab).
2. Click QR Code Generator in the Scripts & Add-Ins panel (or search for it).
3. Fill in the dialog:

4. Click OK — the 3D QR code appears as a new component.

How It Works

1. segno generates the QR code bit matrix.
2. All four edges of every dark module are collected into a Python set — shared edges between adjacent modules are deduplicated automatically, so each module ends up with its own clean closed square profile in the sketch.
3. Profiles are filtered by area (≈ module_size²) to exclude large annular profiles that Fusion creates for enclosed white regions (finder pattern rings, etc.).
4. Each matching profile is extruded individually with NewBodyFeatureOperation — one extrude call per module — so Fusion never merges touching bodies.