radiusedges

Radiusedges, in the context of geometry and computer-aided design, refer to edges that have a rounded, curved profile created by replacing a sharp corner with a surface of a specified radius. The radius defines the curvature and determines how gradual or pronounced the transition is between adjacent faces. Radiusedges are commonly produced as fillets in CAD software and are distinct from chamfers, which introduce a flat, angled transition rather than a rounded one.

In CAD and modelling, radiusedges can be applied to single edges or multiple edges. Fillets are typically described as constant-radius, where every point along the edge uses the same radius, though variable-radius fillets also exist, allowing the curvature to change along the edge. Edges with radii are often created to ensure smooth transitions between features or to satisfy manufacturing and ergonomic requirements.

Applications and considerations differ by industry. Radiusedges reduce sharpness for safety and comfort, minimize stress concentrations to improve fatigue life, and aid manufacturability in processes such as milling, turning, or molding. In injection molding and casting, larger radii facilitate part release and reduce defects; in electronics housings or consumer products, rounded edges can improve grip and user perception. In architecture and product design, radiused edges contribute to aesthetics and tactile quality.

Implementation and constraints: most CAD packages offer a Fillet or Round tool to assign a radius to selected edges. The radius value is chosen based on functional requirements, manufacturability, and assembly clearances. Practical limits include interference with neighboring features, tooling constraints, and the printing or molding process’s minimum resolvable radius.