The craft is joint: architects, designers, and fabricators iterate on prototypes, refining joints, coatings

https://www.scribd.com/document/1041762894/Cupolas-with-a-Century-in-Mind-The-Instance-for-Hand-Fabricated-Copper-Craft-224458

The craft is collaborative: designers, designers, and makers iterate on models, refining joints, surfaces, and tolerances until sophisticated concepts come to be buildable metal.