Design and engineering of parts for others made by additive manufacturing, stereolithography, selective laser sintering, direct metal laser sintering or 3D printing; design services for others in the field of additive manufacturing, stereolithography, selective laser sintering, direct metal laser sintering or 3D printing; design and engineering of parts for others made by machining, injection molding, clay firing, or casting; design and engineering of custom parts for others; design and engin...