Abstract: There is provided a method for online distribution of 3D model files for printing 3D models. The method includes establishing a designer account with a designer user. The method includes receiving from the designer user a 3D model file defining printer specifications for the printing of the 3D model file. The method includes compiling a prohibited list of prohibited 3D models. The method includes comparing the received 3D model file with the prohibited list for matches between the 3D model file and the prohibited 3D models of the prohibited list. The method includes establishing a client account with a client user. The method includes making the received 3D model file available for selection by the client user only if the 3D model file is not matched with any of the prohibited 3D models of the prohibited list.