The Rapid Roboting concept is coined as an analogy to the original idea of Rapid Prototyping, which is the process of producing physical models fast by building parts layer by layer, by special machines that read the instructions from a computer representation of the intended piece. The original concept was later replaced by the Additive Manufacturing term and is currently known as 3D printing. Like any prototype, these models usually lack the high fidelity of the final product. However, they allow visualization, testing, and refinement at the early stages of product development.