Design Surface Modeling Powerful Surface Modeling Surface modeling remains one of the best ways to create 3D organic shapes. Mastercam delivers a powerful set of surface design tools that give you straightforward control over the fine detail of even the most complex job. Create parametric and NURBS surfaces using loft, ruled, revolved, swept, draft, and offset creation methods. Fence and Net surfaces expand your modeling power. Trim single and multiple surfaces to curves, planes, and surfaces. Easily extend and split surfaces. Smart extension for trimmed surfaces avoids pitfalls with traditional trimmed surface extension. Flexible surface filleting offers constant radius fillets and point-and-click variable radius fillets. Automatic parting line calculation for mold making. Create, edit, and manipulate realistically shaded surface models.