Model-based tracking makes it possible to project augmented reality onto physical objects without the need for trackers or QR codes. This brings the great advantage that the space or physical objects do not have to be adjusted in order to project AR, but also that we can accurately pin the digital information to the physical elements. This prototype shows the potential of model-based tracking in the context of virtual training on physical parts. The user is guided step by step in the real life scenario about the correct assembly steps.