Undercut An undercut is a feature in a 3D model where a portion of the geometry is recessed or overhangs, creating an area that is not directly accessible from the build direction. Undercuts are challenging to print without support structures, leading to sagging or poor layer adhesion. Proper print orientation, support placement, and multi-axis printing strategies minimize undercut challenges. Advanced slicing software detects undercuts and generates optimized supports. Undercuts enable complex geometries, interlocking parts, and functional assemblies, expanding design possibilities for artistic, architectural, and engineering applications. |