3D print is remoulding our lives

At the Lansing Delta Township assembly plant of General Motors, much of assembly tooling would be machined from metal, costing hundreds, or often thousands of dollars to produce. About three years ago, GM acquired a polymer 3D printer costing in the region of $35,000. It has since reported an expected cost saving of over $300,000, according to a Automotive News. For example, an outsourced tool, used to align engine and transmission vehicle identification numbers usually cost the plant about $3,000. It cost less than $3 to make one using 3D printing.