The craft is collective: engineers, engineers, and fabricators iterate on models, refining joints, surfaces
https://titusqogg238.lucialpiazzale.com/what-takes-place-after-100-winters-copper-chimney-shrouds-by-salvo-metal-works
The craft is joint: architects, engineers, and producers repeat on prototypes, refining joints, finishes, and tolerances until sophisticated concepts become buildable metal.