3D modeling of Complex Structure based on AutoCAD VBA

In this paper, 3DSolid models are widely used in many fields. Although it is easy in modeling, the repeat work is large. Automatic building for 3DSolid models can be performed by developing programs based on VBA for AutoCAD. The 3DSolid modeling method by VBA is discussed in this paper, and notices in modeling by VBA, which is obtained in author's work, are given.