In this paper, we describe the demonstration system in which a wooden 3D puzzle is assembled using an augmented reality system. The 3D puzzle describes a simplified assembly task in a factory. The 3D puzzle is a means to study how to implement an augmented assembly system to a real setting in a factory and explore the advantages and disadvantages of augmented reality techniques. With this demonstration system we can also test, demonstrate and evaluate different input modalities for augmented assembly setup. Furthermore, a demonstration system helps us discuss with industry and get invaluable feedback. Keywords Augmented reality, AR, industrial AR application, PDM.