Big Boy Type Steam Locomotive SolidWorks

Big Boy steam locomotive 3D model SW design sldasm ??? sldprt source file to provide a large file more than 100M, Big Boy steam locomotive front and rear respectively arranged with two groups of dynamic wheels, each group of eight dynamic wheels around, plus two weeks of four wheels of unpowered guide or slave wheels. The two sets of moving wheels had independent pistons and crank connecting rods, connected by articulated bogies and sharing a common firebox. This type of locomotive is the largest, most powerful and most numerous steam locomotive in history.