Subassembly Composer Autocad Civil 3d Tutorial Pdf ((top)) -

Autodesk Subassembly Composer (SAC) is a specialized tool used to create custom subassemblies for AutoCAD Civil 3D without requiring complex programming

. It allows designers to build unique cross-sections for infrastructure projects—such as specialized road lanes, curbs, or ditches—that the standard Civil 3D tool palette might not provide. 1. Getting Started with SAC Subassembly Composer Autocad Civil 3d Tutorial Pdf

Note

: Autodesk University (AU) often provides free handouts in PDF format after classes like CI3435 or CI2289 – search the AU website for past course materials. Autodesk Subassembly Composer (SAC) is a specialized tool

Point P2 (Top of Curb Back):

Toolbox

: Contains the building blocks for your subassembly, including basic geometry ( Points, Links, Shapes ), advanced geometry, and workflow logic like "Decisions". Limitations of the Subassembly Composer : The Subassembly

• Limitations of the Subassembly Composer: The Subassembly Composer has some limitations, such as the need for advanced technical knowledge to create complex subassemblies.
• Future developments: Future developments, such as improved user interface and additional features, could enhance the usability and functionality of the Subassembly Composer.

4. API Function Library

Part 1: Understanding the Subassembly Composer Ecosystem

1. Create new subassembly and name it "Curb_Gutter".
2. Add a baseline point at origin.
3. Add a "Link" from baseline to gutter face; set link code to "GUTTER".
4. Add a point for curb face offset 0.5 m above baseline; set point code "CRBFACE".
5. Add a link from curb face downward with slope -6% to paved shoulder; assign link code "PAV".
6. Add numeric parameters: CurbHeight = 0.15, GutterWidth = 0.6, PavementSlope = -0.06.
7. Assign parameters to link lengths and slopes, validate expressions.
8. Save, export, and test in Civil 3D corridor.