I'm a developer and hobbyist woodworker too :)

I'm also the developer of FluidCAD. It has an MCP you can wire to any LLM. It runs locally on your machine.

It is still missing features for splitting the model into parts, but that is coming in a future release.

https://fluidcad.io/

MCP config (node.js required): https://fluidcad.io/docs/cli/#fluidcad-mcp

I'm building ShopSpec (https://shopspec.io/) for this kind of workflow. I'm a woodworker and use it for my own home and shop builds.

It's a woodworking domain engine and parametric furniture builder focused on projects like bookshelves, cabinetry, and shop furniture. It works out the parts, joints, cut list, etc.

There is an MCP component in beta (https://shopspec.io/agents) that allows an agent to explore designs while the engine still does the math. To take a design to CAD, a project can be exported as DXF or as a Ruby script that rebuilds it in SketchUp Pro.

It's narrower than Shapr3D, but it might fit the projects you describe.

Not yet fully baked, but I am planning to add a woodworking mode to claydash with natural cutting UI - For now I have a couple of wood materials and there is the ability to extrude + cut faces à la sketch up, which should work for simple projects.

The local version has a MCP server.

see https://claydash.com/

I've had good results with Claude Code + OpenSCAD.

Claude Code is now WAY better at the freecad python api. My product (related to ceramics) does a whole bunch of custom 3d modeling and the new generation of LLMs can go in and make significant changes and basically get it right. They can also deal with a lot of annoying corner cases when you run into them.