ok i try meshlab with : Filters -> Remeshing, Simplification and reconstruction and Quadratic Edge Collapse Decimation it is correct ? but i have the same problem :( -- View this message in context: http://forum.openscad.org/bug-with-import-stl-SM-const-decorator-h-Line-326-tp14954p14964.html Sent from the OpenSCAD mailing list archive at Nabble.com.