|  | To begin, an armature is created which is 
					the inner structure. This supports the clay that is used as 
					a modeling medium. My armatures are usually made wth a wood 
					base and 
					aluminum tubing, however sometimes a sturdier metal is desired. If 
					the piece is large, Styrofoam fastened by wire can be 
					incorporated in the armature to add bulk.  Also, a 
					stronger interior metal such as rebar is used for larger 
					pieces.
 The piece is then sculpted out of oil-based plastilina clay 
					around the armature. This part of the process is the most 
					time consuming, as each piece is worked and reworked 
					until the artistic vision is achieved.
 
 When the original modeling is completed, a "mother mold" is 
					made. This rigorous process can often destroy the original, 
					therefore extreme caution must be observed in its creation. 
					The mother mold is similar to a three-dimensional puzzle 
					with a hard exterior (plaster, fiberglass, etc.) and a 
					flexible interior (a rubberized or latex material). 
					Sometimes there are several sections of the mother mold for 
					one sculpture, depending upon the complexity and size of the 
					original sculpture.
 
 Upon completion of the mother molds, hot wax is poured or 
					brushed into the negative, thus recreating the entire sculpture 
					in wax.  The wax pieces are joined 
					together and re-worked until the wax sculpture looks exactly 
					like the original clay sculpture. If it is a very large 
					piece, the wax sculpture will be left in refined pieces and 
					welded together later after the metal casting.
 
 The completed wax is now ready for another mold or 
					"investment" (made from plaster, sand and vermiculite) which 
					is coated over the finished wax. When a hard investment 
					shell covers the wax, the investment is heated and the wax 
					is burned out. This leaves a negative, again, of the 
					original sculpture. Into this negative, molten metal is 
					poured.
 
 After the metal is poured, the metal finishing work begins. 
					This involves cutting, grinding and smoothing the casting.
 
 The next step is the patina, or coloring, of the metal. This 
					process involves heating the piece with a torch and spraying 
					specific chemicals, based on the color desired. After the 
					desired color is attained and while the metal is still hot, 
					a coat of wax is applied to add luster and to protect the 
					patina.
 
 Usually the last and final step is attaching the sculpture 
					to a base which involves drilling and bolting.
 
 The entire process is called "Lost Wax Casting" and has 
					changed very little since the Greeks and other ancient 
					cultures employed it.
 
 |  |