Actually, that sounds about the same as I do it.. I haven't personally used lazycam so I can't say how it works, but it sounds like that's basically the same as what I do with BobCad for "CAM" / G-code and the free Emachineshop program for my CAD. Does your CAD program allow you to do "contours" where it pops a line out .125" (or whatever) distance from the line you pick? If so, then it sounds like you should be OK.. Just generate that line (which will now be your toolpath) then import that into lazycam and use that line to generate the G-code instead of the line that's your actual part drawing... I'd post a picture but I'm not sure how..