[Mustang46555]

Darwin,

I have used two Shapeways cabs. Yes you can see faint lines from the 3d printing process and they can be somewhat grainy. With that said, use a good "high build" primer, multiple coats, lots of patience and fine sandpaper and they can be made smooth, but don't go into it expecting a smooth injection molded surface right out of the box. It will take "sweat equity" to achieve a glossy finish. But it can be done and the results are well worth the effort.