MASTER SECTION 3

A master section in plastic design is a 2D cross-section that defines the fundamental geometry and key requirements for a plastic component, such as its wall thickness, rib structures, draft angles, and attachment points. It acts as a critical design guide to ensure consistency, feasibility, and proper packaging of the part relative to surrounding components. By defining a "DNA" for the part, it helps maintain a consistent interface and can be used as a reference to guide the entire design process, even through revisions.