RailPup Design is based in Phoenix, AZ, and is blessed with the close proximity to one of the largest 7.5 inch gauge railroads in the country. RailPup Design prides itself on being on the forefront of design and production methodologies, employing advanced 3 dimensional computer aided design (3D CAD) in the creation of its products, assuring a perfect fit during assembly. RailPup Design can design and create the locomotive or piece or rolling stock of your dreams, and then provide drawings and electronic files for CNC, laser, water jet, or plasma cutting of steel components.