a system for providing shape and / or surface features to a moldable material includes , in an exemplary embodiment , at least two first opposed flat endless belts spaced apart a first distance , with each having an inner surface and an outer surface . the system also includes at least two second opposed flat endless belts disposed substantially orthogonal to the first two opposed endless belts and spaced apart a second distance . a mold cavity is defined at least in part by the inner surfaces of the at least two opposed flat endless belts . the system further includes a drive mechanism for imparting motion to at least two of the opposed flat endless belts .