**3. Applications**

Earlier 3D printing or additive manufacturing was normally used for rapid prototyping only but in the current scenario, 3D printing has already established a large pool of diverse applications, for example, in manufacturing, sociocultural, food, and biomedical sectors. There is a wide range of applications from nano to macro to large scale for 3D printing (**Figure 2**).

**Figure 2.** *Range of applications of 3D printing.*
