Augmented reality (AR) has emerged as a powerful tool for enhancing learning experiences, particularly in STEM fields like mechanical engineering. The study involves the development of an AR-enriched learning material that complemented a traditional project guide for designing a 5-degree-of-freedom robotic arm. The AR framework application employs Vuforia, a powerful tracking system, to seamlessly overlay virtual 3D models onto physical 3D printed parts. This enables students to visualize and interact with their designs in a realistic and engaging manner, enhancing their understanding of the design process and the physical properties of their creations. The integration of AR real-time tracking into the assembly of 3D-printed robotic arms has demonstrated its potential to enhance the learning experience for students in mechanical engineering. The ability to visualize and interact with 3D models in real-time can significantly improve their understanding of the design and assembly process, leading to improved learning outcomes.