I built a sophisticated "Blend corner" custom feature with Onshape's upcoming MCP server

Controlling the blend between fillets that meet in a corner is nothing new in 3D CAD, and there are various approaches (manual or otherwise). My experiment here was to go fully autonomous and have Claude code + Onshape FeatureScript MCP server (coming soon) do all the heavy lifting. https://cad.onshape.com/documents/afe... Bottom line: great success! Key takeaway: giving clear requirements and scope ensures the LLM can reason predictably Join me behind the scenes for another of my single-take rehearsals for demos that I am prepping for, test-driving new concepts, or generally practicing. Usually recorded late after all my normal work is done, you might enjoy some of the tips and tricks I hope to offer.