Thanks for the two good tips...tried the bevel thing, and it works, naturally. As the the offer of explaining how to do the exhaust with shading and clipview...would gladly take you up on it...but don't go to too much trouble....as all of us...I am hoping the book will arrive soon. THe "shading" is where I get unsure.....a clipview is somewhere in the movies...Thanks! Piperboy