3D printing is a manufacturing technique in which thin layers of material are applied to create an object.
Materials
Most 3D printers make objects made of plastic. However, some 3D printers can produce metal objects.
Prototyping
3D printing is rarely used for mass production. However, it is common to use 3D printing for creating prototype products and components before you invest in costly injection moulds or other tooling.
Costs
The cost for a 3D printed object often range between 50 to 200 euros or dollars.