SHOW: Rings 329


Title:      Ring.
General:    Mermaid Ring.
Material:   Sterling Silver.
Gem:        
Method:     Cast.
Finish:     Burnished, Polished.
Mechanics:  3D printed from a hand drawn cad model with a Resin Printer
            and cast by burning out the model.
Designer:   W.van Heeckeren.
Craftsman:  W.van Heeckeren.












3D Printed Cad designed model.




Cast in Sterling Silver.




Front View. Finished by Burnishing and polishing.




Left Front View.




Right Front View




Tail View


BURNISHING.


        Burnishing is an old method of polishing metal. By rubbing
                        the surface of the metal to be polished with a
                        highly  polished piece of steel called a burnisher,
                        the surface itself becomes polished.

                                                    Wal.














STERLING SILVER.


        STERLING SILVER is a binary Silver alloy consisting of:
                        925 parts/1000 Pure Silver and
                        75 parts/1000 Pure Copper.
 Annealing temperature: 750 degrees Celsius.
   Melting Temperature: 950 degrees Celsius.

                                                    Wal.













CASTING.


            CASTING is a method by which moulten metal is poured into a mold
                    in order to achieve the desired shape.  In the "Lost
                    Wax" method, an accurate wax model is made.  The wax
                    model is invested (put in a chrystobalite plaster),
                    after the investment has set, the wax is burned out in
                    a Kiln.  This leaves a negative cavity into which the
                    moulten metal may be poured.

                                                    Wal.











CLAW SETTING.


        Claw Setting is done by making a setting from wire, which
                        has a support for the stone, from which emanate
                        wires, which can be bent over the stone to hold it
                        in place.

                                                    Wal.