# Drawing-to-Parametric-CAD

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Michul Kim](https://cerebralvalley.ai/u/usmichael)
- **GitHub:** https://github.com/workshopcompany/drawing-to-parametric-cad
- **Demo video:** https://youtu.be/YnD1F6Z0YTU
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/384

Drawing-to-Parametric-CAD turns a 2D drawing or hand sketch into a proper FreeCAD .fcstd file, not dead STEP geometry. Existing text-to-CAD tools output STEP with no sketch or feature history, so dimensions cannot be edited, drawings cannot be regenerated, and mold-production changes are impossible. This tool asks questions when a drawing is ambiguous, then builds a parametric Body with named sketches and features, verifying each sketch as it goes. Meta's Muse Spark model reads the drawing and writes the parametric macro; FreeCAD executes it locally. STEP is only an export. Verified on three parts: a gear (single valid solid, 2805.07 mm³), a harmonic-drive unit (2618.891 mm³), and a bracket (36.514 mm³, slots exactly 0.500 mm wide).

## More from Meta Global AI Developer Hackathon

- [Memex](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/381)
- [Nuksee](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/382)
- [FlashWatch](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/383)
- [Meta Quant Auditor](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/385)
- [UI Evolution Engine](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/386)
- [Empu](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/387)

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