[Jon Mendenhall] fixed this deficiency by designing a model roller coaster that accurately simulates a full-sized ride. The track and cart are all made of 3D printed pieces, which altogether took ...

[Jared Holladay] is a computer engineering student at the University of Cincinnati and a life-long roller coaster fanatic ... plastic and moving into 3D printed parts with needle-fine tolerances.

Dr Gilles Bailet tested his 3D printer on a zero-gravity flight ... giving them more than 90 brief periods of weightlessness at the apex of rollercoaster-like sharp ascents followed by rapid ...

On-board manufacturing for spacecraft is one small step closer with the development of new 3D printing technology ... of weightlessness at the apex of rollercoaster-like sharp ascents followed ...