US Military tests system for on-demand 3D-printed drones US Military tests system for on-demand 3D-printed drones Engadget The US Army is developing battlefield drones that can be 3D printed on-demand Digital Trends Army and Marines Developing On-Demand 3-D Printed Drones HardOCP Full coverage Brought to you by Google News. Read the rest of the article here. FacebookTwitterGoogle+Pinterest