3D Printing and Sustainable Building Materials

3D printing, or additive manufacturing, is a rapidly growing technology that builds objects layer by layer using digital designs. Since its invention in the 1980s, it has expanded into industries like construction, where methods such as material extrusion and powder-based systems enable efficient, low-cost production. As the construction sector contributes heavily to global emissions, 3D printing offers a more sustainable alternative by reducing waste and material use. In particular, the use of recycled polymers—especially plastics—enhances environmental benefits by lowering pollution, conserving resources, and supporting greener building practices.