The research into polymers and SMPs required injection molding processes which was facilitated through the development of CNC-milled aluminum molds. The mold consisted of two main parts: the cavity and the core. The core formed the main internal surfaces of the module whereas the cavity formed the external surfaces. This two-plate mold is separated via a parting line designed to minimize any undercuts that would potentially hinder or prevent easy part removal. Several tooling features were tested throughout the mold-making process including sprue locations, gates and snap-fit elements.