The document outlines the processes and costs for producing a prototype part using a plaster of Paris mold. The primary process is crafting the mold and prototype pattern. The secondary process injects resin into the mold to create the part. The tertiary process finishes the surface and applies paint. The total first time cost is 198.1 Baht, including the mold, raw materials, wood pattern, and labor/tools. Subsequent parts cost 113.1 Baht each without needing to remake the mold.