A method is provided of fabricating a composite incorporating fillers. The method includes the steps of depositing the fillers in a matrix material either in a rapid prototyping device or prior to inserting the matrix material into a mold. The mold is positioned at a desired location with respect to an electrical field such that at least a portion of the fillers in the matrix material align in a first direction in response thereto. For producing a heterogeneous composite through a rapid prototyping process, the electrodes are positioned at a desired orientation to align the fillers. Thereafter, at least a portion of the matrix material is cured with desirable filler orientation. The procedure is repeated with the desired filler orientation and distribution being introduced layer by layer within the composite.