How to Create a Quick Polar Array with the ROTATE Command's Copy Option - adding benches around inner edge of circle in AutoCAD, Ellen Finkelstein, AutoCAD Tips Blog, May 21, 2011 Periodic Splines in AutoCAD 2012 - rebuilding spline does not compromise shape symmetry, Guillermo Melantoni, What a Mesh, Apr 12, 2011 Free Download: Point and Arrow Line Types - 4 line types to be used in drawings, LIN