This chapter delves into the transformative shift from traditional subtractive manufacturing to additive manufacturing and three-dimensional (3D) printing across diverse industries, including aerospace, healthcare, automotive, and consumer goods. As 3D printing rapidly reshapes the production landscape, the chapter begins by examining various subtractive manufacturing processes alongside the advancements in materials and printing technologies driving innovation. This chapter explores how the integration of the Internet of Things (IoT) is significantly enhancing 3D printing capabilities, with the potential to revolutionize the manufacturing field. Finally, the chapter highlights the economic and social impacts of this digital manufacturing revolution, concluding with a discussion on the challenges and opportunities that arise as 3D printing evolves, redefining how we design, produce, and consume goods.