Comment by dave1010uk

I 3D printed a replacement screw cap for something that GPT-4o designed for me with OpenSCAD a few months ago. It worked very well and the resulting code was easy to tweak.

Good to hear that newer models are getting better at this. With evals and RL feedback loops, I suspect it's the kind of thing that LLMs will get very good at.

Vision language models can also improve their 3D model generation if you give them renders of the output: "Generating CAD Code with Vision-Language Models for 3D Designs" https://arxiv.org/html/2410.05340v2

OpenSCAD is primitive. There are many libraries that may give LLMs a boost. https://openscad.org/libraries.html