The soap dish model uses a lofted surface. Its source curves are worth understanding. Using a UCS on the side of the stock as shown in the diagram, simple geometry was drawn at depth (relative to the Setup) in Z. The geometry was then transformed in X to set the beginning, middle, and end curves of the top surface of the soap dish electrode. These curves were then used to build the lofted surface. The geometry may have to be reversed, to get the right surface.
