Modeling and fabrication of an Atlantic marine engine

Abstract

Three-dimensional CAD models for the one-lunger Atlantic marine engine cylinder and manifold were developed from original engineering drawings, and the corresponding patterns and core molds for casting designed. The viability of CNC milled high-density foam for fabricating complex casting patterns and molds was demonstrated with the Atlantic engine cylinder and manifold. The modeling processes presented in this paper can be applied to other projects in documenting historical components and machinery, and the CNC fabrication techniques can be applied generally for rapid pattern and mold generation. From a historical perspective, the development of the models, patterns and physical castings presented in this paper are one step in restoring the heritage of the one-lunger marine engines and bringing life to the first Atlantic engine of the 2 1st century.