The craft is joint: designers, engineers, and fabricators iterate on models, refining joints, coatings
https://www.mediafire.com/file/xn8vg8yfki55lz1/pdf-36962-95184.pdf/file
The craft is collaborative: designers, engineers, and fabricators iterate on prototypes, refining joints, surfaces, and tolerances up until stylish concepts end up being buildable steel.