Inevitably, 3-D design software will become more user friendly. Not only do you have to learn how to use 3-D modeling software, but you also have to learn the design rules to make a design printable. I will say that designing a 3-D model requires ample computer confidence, and the investment of a lot of time for learning.
But if you want something not yet available, you’ll have to either design it yourself or hire someone to do it for you. If you browse Shapeways’ website, you’ll find many model railroad products available for sale.
