[null and void]

With a big enough printer one could print a skyscraper or ship.

[Half Vast Conspiracy]

With a big enough printer one could print a death star.

[Boogieman]

Imagine if you could 3D print a tank, or a helicopter. Instead of shipping an entire army’s worth of hardware to fight a war, you could infiltrate men, a few big 3D printers (or just build them with smaller printers), and a few shiploads worth of material. All of a sudden, there’s a tank division in the enemy’s capital.