Which additive process is commonly used for rapid prototyping?

3D printing is widely recognized as a leading additive manufacturing process used for rapid prototyping. This technique builds up objects layer by layer from digital files, allowing for quick and cost-effective creation of prototypes. One of the significant advantages of 3D printing in rapid prototyping is its ability to create complex geometries and customized designs that would be challenging or impossible to achieve with traditional manufacturing methods.

The speed of 3D printing facilitates iterative testing and modifications, which is crucial in the early stages of product development. Designers can quickly produce multiple iterations of a component, assess its performance, and make adjustments without the delays and expenses associated with other manufacturing methods.

In contrast, traditional options such as CNC machining involve subtractive processes where material is removed from a solid block, which can be time-consuming and less flexible for rapid adjustments. Molding typically requires the creation of molds, making it less suitable for quick prototyping. Laser cutting is primarily used for cutting or engraving material rather than building up layers, limiting its application in rapid prototyping to specific tasks rather than full object creation. Thus, the preference for 3D printing in rapid prototyping is largely due to its efficiency, versatility, and capacity for innovation in product design.