3D printing refers to the techniques also known as
"additive manufacturing". This process uses a digital
model to create a three-dimensional object by adding successive
layers of materials in the shape of the object.
3D printing machines have been on the scene since the late
1970s; however, only recently has the technology become accessible
to individual consumers. With the cost of 3D printers dropping
significantly after the patents covering the technology expired,
individuals having 3D printers in their homes could be commonplace
in the not-so distant future.
Printing coffee mugs, phone cases, action figures or spare parts
for appliances may soon be as easy as printing a photograph. And
sharing the designs for these objects will be just as easy as
sharing a photograph over the Internet.
