Bolutago: How Metal Learns to Hold a Relief

Field notes

The guide treats relief-making as a sequence of controlled deformations rather than a cutting or casting process. It explains why the sheet is turned between its front and back surfaces, how pitch provides a movable support, and how different tool profiles transmit the hammer blow. The visible material also compares copper, brass, and silver, addresses work-hardening and annealing, and carries the process through edge treatment, mounting, patina, and protective coating.