LifestyleHow do 3D printers work? To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle05/24/2019May 24, 20193D printers can use two very different techniques. However, they have one thing in common: The material used in the printer must be liquifiable. Nozzles then apply the liquid one tiny layer at a time.https://p.dw.com/p/3DRuwAdvertisement