Starting New in the Mold Design Field. Basics of the Injection Molding Machine. Understanding the Basics of the Injection Mold. Before Starting to Design a Mold: Machine Specification, Mold Design, Preload, Mold Material Selection, Stack Molds, Mold Layout and Assembly Drawings. Review and Follow-Up. Typical Examples. Estimating Mold Costs. Machining, Mold Materials, and Heat Treatment.