I'm looking for some advice on 3D printing companies or a company I can send a STL file to and have a locomotive shell made. I have tried shapeways and I'm impressed for it is the first time I seen the prototype but it's not crisp enough to get the painted finish, I am looking for. I know with 3d printing there are going to be lines, but I was wondering if there would be another company or method I could go with to achieve what I am looking for. The shapeways prints were done in FUD by the way.
Any help would be greatly appreciated!