Which technology creates 3D objects by adding material layer by layer?

3D printing is a technology that constructs three-dimensional objects by adding material layer by layer, a process known as additive manufacturing. This method allows for the creation of complex shapes and designs that would be difficult or impossible to achieve with traditional manufacturing methods that typically involve cutting away material (subtractive manufacturing). In 3D printing, the material is deposited in successive layers, building the object from the ground up.

Moreover, this approach is highly versatile and can utilize various materials, including plastics, metals, and ceramics, making it a popular option for rapid prototyping and custom production. The ability to create detailed and intricate designs while minimizing waste is a significant advantage of 3D printing over other manufacturing processes.