Margaretha Held - Margaretha Held Jewelry & Objekt Design, Germany
Margaretha Held, master goldsmith and jewelry designer, is the owner of Margaretha Held Jewelry & Object Design in Durlangen, Germany. She earned her Designer for Jewelry Works and Silversmith certificate from the School for Jewelry, Swabian Gmuend, and her master goldsmith certificate in Ulm. A numismatic enthusiast, Margaretha is the winner of the Platinum Design Award (Commendation) in 2004 and was the first recipient of the Swabian Gmuend Workshop in 2017. This is her first presentation at the Santa Fe Symposium®.
Cuttlefish Bone Casting: Theory of Mold Making, Design Possibilities, Practical Casting Technique and Analysis
This paper describes the application of cuttlefish bone casting, an almost forgotten technique that is inexpensive and uncomplicated. It shows how the cuttlefish casting technique can be applied as an element of art. The many design options and structures that can be created with this technique are explained. The process of mold making and the construction of more complex molds are shown. Practical applications of this technique are looked at as well as typical sources of errors. It is compared with other known casting techniques to show where it has clear advantages such as producing a silver casting in a half hour. A metallographic analysis reveals factors such as microstructure, porosity and oxidation.