We tested the new version of the prototype in a real-life situation. We asked four experimentalists from our laboratory with diverse profiles (experience, gender, level of education, frequency of use of the pilot line) to make an electrode assisted by our prototype (V1). Previously, the participants filled in several questionnaires on their sociodemographic data, their tendency towards technophilia and technophobia and their level of simulation sickness . Each step of the HoloLens 2-assisted manufacturing process was filmed and lasted around 3 hours and 30 minutes. After use, the participants completed several questionnaires to measure cognitive load , level of simulation sickness (compared with preuse score) and perception of the device .