This arrangement leads to a few complicated welding and machining processes, but surprisingly these obstacles can be overcome by simply printing a rocket engine on a 3D printer. The current engine ...

[James Whomsley] likes flying, and likes flying fast. After reaching ... profile rail thanks to a 3D printed sliding guide pin. Initial tests with two rocket motors were promising, leading to ...

The Cedar Rocket is now officially the world's fastest motorized log. Yes, it's a tree. And it does burnouts. An electric turbine manufacturer, a mechanic, and a log house builder walk into a bar.