When I use Claude to model I actually just speak to it in common English and it translates the concepts. For example, I might say something like this:

    I'm building a mount for our baby monitor that I can attach to the side of the changing table. The pins are x mm in diameter and are y mm apart. [Image #1] of the mounting pins. So what needs to happen is that the pin head has to be large, and the body of the pin needs to be narrow. Also, add a little bit of a flare to the bottom and top so they don't just knocked off the rest of the mount.

And then I'll iterate.

    We need a bit of slop in the measurements there because it's too tight.

And so on. I'll do little bits that I want and see if they look right before asking the LLM to union it to the main structure. It knows how to use OpenSCAD to generate preview PNGs and inspect it.

Amusingly, I did this just a couple of weeks ago and that's how I learned what a chamfer is: a flat angled transition. The adjustment I needed to make to my pins where they are flared (but at a constant angle) is a chamfer. Claude told me this as it edited the OpenSCAD file. And I can just ask it in-line for advice and so on.