Artificial Intelligence doing CAD: ChatGPT, Codex and FreeCAD

Giving large language models access to CAD is one of the most direct ways to let them step out of the purely virtual world and begin creating real objects. This article describes an MCP bridge for FreeCAD, why visual inspection turned out to be crucial, and how ChatGPT and Codex were able to generate manufacturable geometry ranging from vacuum hardware to a printable planetary gearbox.