**2. Additive methods to produce tools (rapid tooling)**

There are two main categories. One category includes indirect methods using AM techniques for prototyping master designs to manufacture a mold, while the other category is a direct strategy, where the rapid prototyping machine constructs the real inserts of the core and cavity mold.

Due to its market potential, many businesses prefer AM techniques for tool produce and growth. Each method comes with a number of strengths that are contracted by limitations. Yet these advances cause a flurry of requests from businesses in the Americas, Europe, Asia, and other advanced markets due to their potential effect. Meanwhile, in both of these methods, numerous facilities are working hard to determine whether the time is correct to phase further information can be seen in **Table 1**.
