After completing this chapter, you will be able to:
✓Understand and work with different types of surface models.
✓Create procedural surfaces.
✓Create NURBS surfaces.
✓Create network surfaces.
✓Create surface models from existing surfaces.
✓Blend and patch surfaces.
✓Offset, fi llet, extend, and trim surfaces.
✓Convert existing models to NURBS surfaces.
✓Edit NURBS surface control vertices.
✓Convert 2D objects to surfaces.
✓Thicken a surface into a solid.
✓Sculpt watertight surfaces into solids.
This chapter describes advanced surface modeling techniques and workfl ows used in AutoCAD. Surface modeling provides the ability to create a more freeform shape with tools that solid modeling cannot provide. You have been introduced to basic surface modeling techniques in previous chapters. As you have learned, one way to create surface models is to extrude, revolve, sweep, or loft profi les. This chapter
builds on those techniques. In this chapter, you will develop an understanding of surface modeling techniques that can stand alone in the design process or work in combination with other modeling techniques. As discussed in previous chapters, asolid model is created with a closed .