Zoo Dev Launches Text-to-CAD: Transforming 3D Modeling with B-Rep Surfaces

Products & Applications

The Engineer

21 Dec 2023 · 3 min read

Zoo Dev's Text-to-CAD tool revolutionizes 3D modeling by converting natural language into precise CAD designs using B-Rep surfaces, offering unprecedented accuracy and versatility in digital design.

December 18, 2023

Today, Zoo Dev is thrilled to introduce Text-to-CAD (available at app.zoo.dev), an innovative tool that bridges the gap between natural language and 3D CAD modeling. This alpha launch aims to gather user feedback and refine the underlying model, making it more robust and versatile.

What Changed Technically?

Text-to-CAD is a significant leap from existing text-to-3D models, which typically generate meshes or point clouds. Instead, Text-to-CAD generates B-Rep (Boundary Representation) surfaces. This distinction is crucial because B-Rep surfaces allow for precise geometric definitions and are fully editable in any CAD software.

Why It Matters to Practitioners

Editable Output: Unlike other text-to-3D models that produce amorphous blobs, Text-to-CAD generates STEP files that can be imported into existing CAD programs like SolidWorks or Fusion 360. This means you can refine and edit the generated models as needed.
Future Enhancements: Zoo Dev plans to provide the generated KCL (KittyCAD Language) code in future updates. This will enable users to modify the models directly in their Modeling App, offering even more flexibility and control.

Technical Details

B-Rep Generation: Text-to-CAD uses advanced algorithms to generate B-Rep surfaces, ensuring that the output is geometrically accurate and editable.
Training Challenges: Training a model to generate CAD models is complex due to the multiple valid feature trees for each model. Unlike 2D images, videos, or 3D point clouds, which have strict and singular representations, CAD models can be constructed in various ways, making training and validation more intricate.

User Feedback

Zoo Dev encourages users to experiment with different prompts and provide feedback using the thumbs up and down buttons within the app. This community-driven approach will help identify both successful and problematic prompts, allowing Zoo Dev to continuously improve the model.

Example Models

Here are some fun models generated by Text-to-CAD:

"involute helical gear with 36 teeth": A precise and detailed gear that can be easily integrated into mechanical designs.
"a 9 pointed star": An intricate geometric shape that showcases the model's ability to handle complex features.
"crea" (incomplete in the source, but likely a creative or custom prompt): Demonstrates the flexibility of the tool in generating unique and specific models.

Getting Started

To start using Text-to-CAD, simply head over to app.zoo.dev. Generate your model, download the STEP file, and import it into your preferred CAD software. For those interested in the future enhancements, keep an eye on the Modeling App 1.0 roadmap available on their GitHub.

Conclusion

Text-to-CAD represents a significant advancement in 3D modeling by leveraging natural language to generate precise, editable B-Rep surfaces. This tool has the potential to streamline design processes and democratize access to CAD modeling for both professionals and enthusiasts.