Co-assemble: A collaborative AR cross-devices teaching system for assemble practice courses

Assembly trainings in engineering drawing courses mainly rely on physical models, revealing many limitations. We use augmented reality and Azure Spatial Anchors to design "Co-assemble," a multi-user cross-device collaborative system for the assembly practice on mobile devices. There are three modes in the system: single, collaboration, and class. It will help students understanding the models’ structure and assembly activities and help teachers easily teach or monitor classes. We also presented and discussed the results of the preliminary user study evaluating the system.