3DJ.app
AI-assisted CAD and 3D creation for makers and agents
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3DJ.app - AI-assisted CAD and 3D creation for makers and agents

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Create 3D concepts and editable parametric CAD in your browser. 3DJ combines CAD scripts with text-to-3D and image-to-3D exploration: export STEP/STL from CAD, or generate GLB models through remote MCP agent workflows. Built for makers, product designers and prototyping teams by Neural Deep Network. Explore accessories, objects and early design ideas, then check dimensions, tolerances and printability before production. From creative brief to a model you can inspect, refine and prototype.

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Hunter
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Hi Product Hunt! I’m Tomas, founder of Neural Deep Network. After 23 years in automotive and industrial design, I wanted a shorter path from an idea to a model you can edit and prototype. 3DJ combines browser-based parametric CAD with AI 3D generation. Use editable CAD scripts and STEP/STL exports for precise work, or explore text and image generation for concepts. We also expose remote MCP tools for generation, job status and GLB downloads. I’d love feedback from makers, designers and developers: what would you build first, and where does your current idea-to-prototype workflow get stuck?
Hunter

A little more about why we are building 3DJ:

After 23 years in automotive and industrial design, I want more people to be able to explore an idea, inspect its geometry and move toward a physical prototype. 3DJ brings editable parametric CAD and AI-generated 3D concepts into the browser. CAD exports and generated meshes serve different stages of the process; dimensions, tolerances and printability still need checking before production.

We are especially interested in feedback from makers, product designers and teams working on accessories, early prototypes and useful everyday objects. Our wider Neural Deep Network work includes SketchMonkey for visual concept and CMF exploration.

Shoutout to Figma for helping us refine the interface and user experience. Thanks also to our early testers and design community for pushing the workflow forward.

For investors and strategic partners: we welcome conversations about AI design tools, browser-based 3D workflows and the path from concept to prototype. Reach us at .

What would you build first, and which step currently slows you down most?