This research is to assess the impact of augmented reality (AR) on the learning performance of technical drawing students. This will be achieved by creating a mobile learning application named AROP (Augmented Reality for Orthogonal Projection) using Catia, Blender, Unity 3D software and Vuforia. This study investigates the impact of using AR technology in technical education on the proficiency of the first year students at ANOUAL technical high school in Casablanca, Morocco. We will focus on the technical drawing course and, more specifically, the orthogonal projection section, which is the subject of our study. This study involved 36 students. The students divided into two groups, with each group including 18 students. The evaluations showed that students who used the AROP learning application to learn orthogonal projection (Group 1) had superior results compared to those who used conventional techniques with an average pre-test score of 10.67, a maximum score of 13 and a minimum score of 9. The mean post-test score for this group was 15.33. The maximum score is 18 and the minimum is 14. While Group 2 had an average pre-test score of 10.67, with a maximum score of 13 and a minimum score of 9. The mean post-test score for this group was 12.67. The maximum score is 15 and the minimum is 10. Additionally, the students of Group1 expressed good comments about their learning experience.