What are 3D printers?

3D printers produce 3D objects by using CAD. They can use melting plastic, powders, or a mixture of both. 3D printers come in a variety of shapes and sizes ranging from devices that fit on a desk , to huge models of construction used for the construction of 3D printed houses. There are three kinds of 3D printers, each having distinct processes. www.pick3dprinter.com/industrial-3d-printer/