in the technical section, he basically discussed something on center of gravity since the truck in the middle section only uses one set of wheels. The joints on both end of the cars are different in order to have to ability to navigate the car around curve without derailing.
As for the shell, i believe he printed from the 3D printer. Very impressive.
As for the shell, i believe he printed from the 3D printer. Very impressive.
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/