yesterday i made a model with this software, but when my model exported in iges she has lot of surface about 260 surfaces. in this case i need maxsimum 100 surfaces
can you help me how to reduce the surfaces?
In that case you must have used a lot of irregular points or faces. An irregular face is a face with less or more than 4 points. An irregular point is a point with less or more than 4 faces connected to it.