Model railroad freight cars, locos, structures and accessories. I stopped designing new models because Shapeways changes its rules and prices too much.
Overall, the freight car models just require trucks/couplers, cleaning (use Bestine), some sanding, paint, and a brake wheel (N MT Miner Wheel 1063). Some parts of the models are delicate, due to the nature of the prototypes. In general, the most delicate parts are the stirrups. If they break or arrive broken, either glue them back on or use the opportunity to replace them with wire/etched metal, which is more durable and more true to prototype anyway. If you want your models to endure, make sure you clean the models well using Bestine, and paint the models. NOTE: Some older N scale models are too delicate to meet Shapeways' new design policies. Hence, I have removed them from sale. But even models that seem to be printable are sometimes nitpicked by Shapeways to death and deemed unprintable. So, I can't make any guarantees that Shapeways will always fulfill your order. For the most part, I've stopped designing new Shapeways products. That's due to Shapeways changing their rules and pricing structures all the time. Also, check out https://www.shapeways.com/shops/seaboardshops for many of my designs in HO scale.