so I uploaded 3 MLR files to shape way for a test, it will cost $224.31 just to print them. They cannot be built using versatile filaments. I guess the shells cannot be bend to fit into the chassis. only fine plastic material can be used to build the shells.
My Trackmaster/Tomy/Plarail Photo Gallery Page (over 600+ photos and still under construction)
https://www.flickr.com/photos/183311600@N03/
https://www.flickr.com/photos/183311600@N03/