but underscored the burgeoning 3D-printed variety. With those, DIY-gunmakers download a design file, and feed it into a machine that prints layers of plastic to make some components of a gun.
The Helly Hansen Crew Insulator 2.0 vest is light, water-repellent and can be packed down small. Ali Wood tests it while motoring the canals of France ...
What does it take to design a new needle for medical use ... Not long after we started our collaboration, a 3D printing method became available and that was the enabling technology.