Here is a progress report on the SW1500 model I have been working on. The 3D modeling has been complete since Thanksgiving of last year, 2018. Designing and testing the etched metal handrails is the reason the SW1500 is not available on Shapeways yet. However, the next version of the handrails should be the final one so the SW1500 will be available within a week or two. The final version of the handrails will be available at the end of February at the earliest. There will be two versions of the SW1500 frame. There is a "Basic" version and an "Advanced" one. The basic frame is just like the old SW1200 frame. You mount the motor and use the circuit board from a single shorty. The advanced frame is for the enthusiast. It requires two shorties and you have to acquire the Rokuhan dual shaft motor. This will give the SW1500 four powered axles and mount a Digitrax DZ123Z0 decoder. You can also mount an AZL circuit board from a GP9, GP30, or GP38 if you want regular analog control. By using one these circuit boards you get directional lights. The shells have pilot holes to help drill out the lights and mount fiber optics. I have used 1/2mm fiber optic wire to transfer the light from the circuit board to the shell (seen in the photo). The shell has been designed to thread the fiber optics through the long hood to the top of the cab. The advanced frame requires copper strips to pickup power from the trucks. These copper strips will be available as a kit in my store in a month or two. You can also cut and bend your own if you wish. I will release a template to help you make your own power pickup brushes. The SW1500 shell will be available in both brass and plastic. The basic frames will be available only in brass. The advanced frame is a two part design that requires both a brass print and a plastic print. All of this will be clear on the Shapeways website with links and directions to help you with your purchase. You can see the advanced frame and latest handrail design below. The handrails mistakenly did not have pilot holes for the couplers. In the images below you can see holes for the couplers in the etched metal because I manually cut them out with a razor. This will be fixed ASAP and the design will be submitted for production. Notice the advanced frame has an AZL circuit board mounted on it.