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Create splines
With this script you can easily create smooth polygonal  surfaces. First you need four shapes. You can draw splines or NURBS curves  too.

Create panel > Shapes > Splines > Line
Create panel >  Shapes > NURBS Curves > Point Curve or CV Curve

The shapes must be  opened. The direction of the splines doesn’t matter, but the endpoints must be  in the same coordinate.

一个方便快捷的NRUBS曲面创建工具。

 PolygonCreator v2.0 for 3DsMAX (NURBS 建模工具) 下载 Download