Project Based Learning: from the Idea to a Finished LEGO® Technic Artifact, Assembled by Using Smart Glasses

Smart Glasses and 3D printers are now easily available on the market. The challenge is how to integrate them efficiently in a learning environment. This paper suggests a project-based learning (PBL) scenario how to construct, produce and assemble a planetary gear using Open Source tools, LEGO® Technic, 3D printers and Smart Glasses. The whole project-based learning scenario was implemented together with a 16-year-old student. Additionally, the assembly process using Smart Glasses was tested by seven users in a qualitative evaluation. The feedback of the student of the target group together with the feedback of other subjects was considered to improve the PBL scenario and the Smart Glasses (ReconJet) application. The evaluation showed the potential of Smart Glasses to improve hands-free assembly processes and supports the user to understand the structure and functionality of mechanical objects.