I agree with Gerd! Shapeways isn't perfect either but they have made 3D printing possible for us to use. Most of the things they do are still being tested. I don't see anyone else making this possible to do for others to be able to have a SW in Z scale. Everyone wants one, but few have tried to design one that all can do, and works well. There is a lot of work put into Rudy's model and it does look outstanding. Some of you might think of some of the problems with newer models from AZL and MTL not every thing is perfect! I'm not a professional designer either so this is just my opinion! You also have to think about shapeways handing and cleaning also polishing. If they were buffed the friction from and polishing if using some type of drill can heat the brass up and make it distorted a bit. That's just my thought since I have never seen them polish anything! I just know how they have handled so of my models. I just wish I would have done more with the one I started. But it's plastic!!! Thumbs up!!! Rudy!!!!!!! I haven't even started my two yet! I think this post will help all who wants a shot of building there own SW!!!