Thanks for the info Nick.

When I save my MoI curves as .ai and try to open that file in Cut2D, Cut2D says "Failed to import vector data from EPS/AI/PDF file... The file probably contains only bitmap data." Not sure why.

Currently I'm going from MoI to .skp, then into Sketchup, then exporting from SketchUp to .dxf. Cut2D seems pretty happy with that - the imported curves look good.

- Steve