Presently, 3D printing is extremely slow and time consuming. For example, it may take several hours to print a single 3D object even if the 3D object is relatively small.
A further problem with existing 3D printing techniques is the need for printing a support structure for any overhanging components of a 3D object. For example, a figurine of a human-like character may have its arms extending outward from its body or torso, and the arms would be cantilevered out from the body or overhang from the adjacent portions of the body.