You can export the Adobe Illustrator drawing using either the AutoCAD Drawing (.dwg) or AutoCAD Interchange File (.dxf) format, both of which SketchUp can import.
Note: When you are exporting Illustrator drawings that include curved line segments (splines), you may want to reduce the number of anchor points that define the curve in order to reduce the number of segments that are created from the curves when the file is imported into SketchUp. If your imported geometry contains a lot of segments, the file size can increase dramatically, especially if you extrude the faces formed by the segments. Try to balance how many anchor points you think you must include in curved lines by taking into consideration the distance at which the curved lines will be viewed in the model.
For more information about preparing a CAD file for import into SketchUp, click here.
