I think turbocad has a way of rastering a image. I use R2V to make a dxf out of it then bring it into my cad/cam program and clean it up. I think you can do all that in Turbocad then use mach3 to create the gcode with lazycam.
Attached is a scrollsaw jewerly box I converted to a coffee table and cut out on my router.
Donny.