Creating Solids and Surfaces from 2D - Autodesk AutoCAD 2013 Practical 3D Drafting and Design - page 104

Exercise 4.3
We are going to create a circular balcony by following these steps:
1. Open the file A3D_04_03.DWG . This drawing already includes all needed
sections.
2. Apply the EXTRUDE command to the semicircle, with height as -0.15 :
3. To create the hand rail and base rail, apply the REVOLVE command to
both rectangles. The first point of the axis is the midpoint or center of the