I promised some videos of the lost wax process, so here goes:
This is the process of dipping the wax patterns (sculptures put onto a sprueing system–pathways for bronze to enter and gasses to be released). The process involves coating the pattern with a silica-based slurry, then covering the wet surface with sand. After it dries the process is repeated five or six times to build up a ceramic shell.
The next step is to burn the wax out of the mold, leaving a hollow shell:
After that I melt the bronze and pour it into the ceramic shell:
I’ll try to get videos of other parts of the process (oh, yes, there are lots more!), eventually.