I think 3D surfaces creation should be enchanced!!!! Now A lot of surfaces can't be created with AutoCAD!!First the mesh is ribbish. Because it can't be created by cad like 3d Max. sweep function can't control section. so can't get Desired results。the surfnetwork creates surfaces need with edge of Peripheral surfaces forming g1,g2 g3 relationship. surftrim be lack of function that draw line on the surfaces. scale is lack of scaling along axial!. please add 3D surfaces creation and surfaces editing. a lot of people expect!!!!!!!