MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I made a small one with black PLA, then I made 2 large ones from gray PLA at 3x scale. Pretty cool, my kids love them.
Your prints of the train look great! :) Thanks for sharing the images.