The 3D-printed motor matched or outperformed comparable motors made with conventional manufacturing — and only cost 50 cents in materials.

YOKOTA AIR BASE, Japan — Tech. Sgt. Tylar Cravens believes he has an idea that could change the way the Air Force trains aircraft maintainers, and he’ll soon pitch it to top leaders at the Pentagon.

Scale models and automotive enthusiasm have gone hand-in-hand since the earliest hot-rod days. In modern times, you'll find countless ways to indulge in these tiny replicas that often end up next to ...

3D printing is a powerful tool for creating all kinds of stuff, but it has its limits. Hobbyist-focused machines that dispense melted plastic through a nozzle can only make parts that are so strong.

The moment you finish setting up your first 3D printer, it may feel as though the entire world is at your fingertips. After all, you can craft all sorts of things, from handy tools to beautiful ...