SVG to STEP

Create a 3D STEP file from an SVG

Use the repository's Codex skill to send a generated CAD SVG to Autodesk Fusion, build the layered model, and export a STEP file without selecting every profile by hand.

Before you start

  • Clone this repository and open it in Codex.
  • Install and open a current Autodesk Fusion build.
  • Start the local Autodesk Fusion MCP connector.
  • Generate and download a CAD SVG from the plate generator.

Convert with Codex

  1. Keep Autodesk Fusion open. Codex discovers the project skill from .agents/skills/fusion360-svg-to-step.
  2. If Codex does not list the Fusion MCP server, register the connector and restart Codex:
    codex mcp add fusion --url http://127.0.0.1:27182/mcp
  3. Ask Codex to run the project skill:
    Use $fusion360-svg-to-step to convert output/example-cad.svg to STEP.
  4. Wait for Codex to report the output path, file size, and Fusion body check before using the STEP file.

What the workflow creates

  • A -1.35 mm white base plate
  • A +1.0 mm white overlay
  • A +1.0005 mm black text, logo, and AprilTag layer
  • A STEP file saved beside the source SVG unless another output path is requested

If something fails

First confirm that Fusion is open and the connector is reachable. A very small STEP file usually means the geometry was imported incorrectly; the project skill should use the included parser rather than Fusion's generic SVG import.

If the problem is reproducible, include your operating system, Fusion version, connector version, and the Codex error in a GitHub issue .