ESA - 3D-printed storable-propellant rocket engine design tested

The recent hot firing of a full-scale rocket thrust chamber assembly takes us a step closer to proving 3D-printing for an engine design destined for rocket upper stages, in-orbit transportation applications (kick-stages and space-tugs), microlaunchers, and exploration spacecraft such as a lunar lander and ascent stage on the Moon.

Scottish Startup 3D Prints Eco Rocket Engine « Fabbaloo

What alternative rocket propulsion systems are currently under research for launching significant payloads into space, aside from traditional chemical-based systems? - Quora

NASA, Aerojet Rocketdyne Test 3D Printed Rocket Engine Component - AmericaSpace

Fully 3D printed rocket engine unveiled by Skyroot Aerospace - 3Dnatives

Unveiling vehicles and technologies for future space transportation

Rocket Factory Augsburg talks reusability plans and 3D printing

Rocket Crafters Tests STAR-3D 3D Printed Rocket Engine « Fabbaloo

Rocket Report: A mysterious explosion in China; Firefly tests new engine

Rocket Factory Augsburg talks reusability plans and 3D printing

PDF) Advanced Rocket Engines

Fail Of The Week: 3D Printed Parts That Burn Like NASA's Rocket Fuel