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http://cad-1.com/ | Civil 3D Subassembly Composer -- Civil 3D Subassemblies are preconfigured AutoCAD objects made up of points, links and shapes that assist in the design of three-dimensional sections of roadways and other corridor-type structures. The Subassembly Composer is an application which runs outside of AutoCAD Civil 3D and enables users to create custom subassemblies. If you find the subassembly composer intimidating, this webinar is for you. Join Brain Hailey, PE as he guides you through the ins and outs of the Civil 3D Subassembly Composer, shedding light on the mysteries of this powerful tool.