EZ...nothin wrong with drawing what you built into the cad file so as to continue your design in cadd. I do that often at work: draw up the concept, build some prototypes, make changes incorporated during prototype construction to the cad file, draw/design the other parts of the concept - we do that over and over until we get it running then 'asbuild' the final product. Whatever tool helps ya think!! I see you have some funky curves in there and you may want to draw some 3d to design your topography. Looks pretty cool tho. Got any pics to post of your progress? Have fun!