This is the first book on Additive Manufacturing that provides an original theory for the entire subject.  It is the culmination of a search for the root cause of manufacturing problems that occur in practice.  The author finds a reason why there are only two types of layer arrangement for manufacturing products and divides fabrication problems in additive manufacturing into two types: solvable and unsolvable. This allows readers to anticipate/avoid difficulty in manufacturing, saving materials, time, and resources.