Which of these technologies is commonly used in rapid prototyping?

3D printing is a widely recognized technology in rapid prototyping due to its ability to quickly create three-dimensional objects from digital models. This process allows for rapid iteration and testing of designs, enabling designers and engineers to produce prototypes in a matter of hours or days rather than weeks or months. The versatility of 3D printing accommodates a variety of materials, such as plastics and resins, which can closely resemble the final product's look and feel. Additionally, 3D printing supports complex geometries and designs that may be challenging or impossible to achieve with traditional manufacturing methods, making it particularly valuable in the early stages of product development.

In contrast, laser cutting is primarily used for cutting and engraving materials rather than creating three-dimensional prototypes. Vacuum forming is suitable for creating thin-walled shapes and is not as flexible in terms of material properties as 3D printing. Injection molding, while effective for mass production and high-quality parts, involves longer lead times and significant setup costs, making it less suitable for rapid prototyping. Therefore, 3D printing stands out as the most efficient and adaptable choice for rapidly producing prototypes.