Abstract: A three-dimensional printing catalog system and methods of use and doing business. A 3D printer provides access to one or more catalogs of printable models. The printer includes a three-dimensional print engine, a device interface in communication with the print engine, a user interface in communication with a catalog of remotely-stored model data sets, local storage, and a network communication link in communication with the user and device interfaces, the local storage, and the remotely-stored model data sets.

Abstract: An additive-manufacturing removable raft. Layers of material are sequentially deposited on a build platform. Portions of the perimeters of the layers are defined as bevel portions, the bevel portion of each layer after the first overhanging the bevel portion of the preceding layer to form an edge surface of the raft at an acute angle with respect to the build platform.