FreeCAD, http://www.freecadweb.org http://www.freecadweb.org I do basically all my CAD in it. For 3d-print, laser and milling, roughly in that order. For laser/

FreeCAD, http://www.freecadweb.org http://www.freecadweb.org I do basically all my CAD in it. For 3d-print, laser and milling, roughly in that order. For laser/millling you can either work directly with parametric 2d ("Part Design"), or work in 3d and then export 2d outlines (my preferred way).