Before drawing, define how the subassembly will behave in Civil 3D: Input Parameters: Create a parameter named
Autodesk Subassembly Composer (SAC) is a standalone application that allows Civil 3D users to create complex, parametric subassemblies without manual programming. It is primarily used when standard out-of-the-box subassemblies cannot meet specific corridor design requirements, such as unique road cross-sections, tunnels, or retaining walls. civil 3d subassembly composer tutorial pdf
so the subassembly can stretch or snap to existing site conditions in your corridor. Eagle Point Software Essential Tutorial Resources (PDF & Documentation) Before drawing, define how the subassembly will behave