The design of effective problem-solving software for engineering education requires structured solutions to support student learning. Many existing tools fail due to incomplete analysis, poor user interfaces, or professional-oriented features. Technologies such as multimedia and virtual reality have also been explored but did not successfully enforce learning. Augmented Reality (AR) has emerged as a promising alternative to improve interactivity and engagement. This research introduces AR-4BL-MAST, an AR-based software designed to help Mechanical Engineering students understand, visualize, and solve four-bar link (4BL) mechanisms problems. AR-4BL-MAST eliminates the need for markers and employs a new smart touch-to-print interaction technique, where users interact by touching symbols on paper. It recognizes seven functions—rotational movement, link color changes (A, B, C, D), pause, and voice commands—allowing real-time 3D modeling and analysis based on Grashof’s law for mechanisms like drag-link, crank-rocker, double-rocker, and parallelogram linkages. The software was tested in a quantitative evaluation study with 30 students at University Tenaga Nasional (UNITEN), using statistical tools such as ANOVA. Results showed that AR-4BL-MAST significantly improved students' ability to imagine, understand, and visualize 4BL problems, offering an interactive alternative to textbooks and existing software. The study concluded that students preferred AR-4BL-MAST for its ease of use, innovative interactivity, and effectiveness in teaching mechanical dynamics, providing a cost-effective and engaging solution for improved learning outcomes.​​