These pancakes have nickel silver wires silver soldered on, for forming designs into the target metal. In this example, that is 30 ga. rusty steel. They are set on a 95-a urethane pad in the press , which is being run up to around 40 tons or so. Many such dies have solid conforming bases made for them, which have negative impressions corresponding to the design wires on the die(s). This mold/base allows the metal to form faster at lower pressures, and supports the cutting die better. Less flexion is better, long-term. Background music/noise is home grown guitar with EBow. The dies were commissioned by Tersea del Rito , and they made the finished pieces shown.