A plaster copy of the 11-inch model is made, which, in turn is used to make a negative form of the new coin in rubber. The rubber form is used to create a positive, 11-inch model in epoxy.Zzzzz... huhwhah?
A transfer engraving machine creates a coin-size copy of the 11-inch epoxy model in steel. The result, called a master hub, is used to press a master die in a negative form. Positive-relief work hubs are made from the master die, and from those work hubs, negative-form work dies are made.
Party on, party people. Here's another tantalizing full-of-vitality article by Jen Waters.
Posted by James F at 11:09 AM