All pieces start as large sheets of glass made specifically for fusing. The starting shape of the piece is hand cut using diamond-edged etching tools. Next, smaller pieces are hand cut and stacked on the base. Thin glass rods called “stringers” may be used to create straight lines. Care must be taken with colors, because colors may subtlety change during the firing process. The assembled piece is then placed in a kiln for the initial firing.the time to hold the fusing temperature, and the rate of cooling. The entire firing process, including cool down, takes 12 or more hours. (less)