3D printing significantly reduces manufacturing costs by streamlining production processes, as demonstrated by GE's turboprop engine, which saw a reduction in parts from 855 to just 12. This technology consolidates subsystems from 40 to 1 and suppliers from 50 to 1, showcasing its efficiency. The ability to create hidden components through 3D printing is particularly impressive and highlights the technology's innovative potential. The rapid mainstream adoption of 3D printing is evident in various sectors, including automotive manufacturing, where it is used for producing race car parts. Overall, 3D printing is revolutionizing manufacturing by enhancing efficiency and reducing costs.