You can buy a Lamborghini for an outrageous sum of money, or you can 3D print one for $20,000 and a little skill. Here's what one engineer has done.

Although there was briefly a company called Rotary Rocket, the term is much better known as a nickname for the Mazda RX-7 — one of the few cars that used a Wankel, or rotary, engine. If you ever ...

The new John Deere tractors rolling off the manufacturing line in Mannheim, Germany, have a first for the company: a metal 3D-printed engine part. The global manufacturer of agricultural and turf ...