Abstract:

This paper uses the challenge oriented learning method to introduce mechatronics engineering students to robotics. Also it serves as an academic resource by detailing the design, kinematic analysis, trajectory planning, and CAD modeling of a cost-effective robotic arm designed specifically for laboratory-based learning in robotics education.

The robotic arm, which can move in four different ways (4-DOF), is powered by five servo motors. Using SolidWorks, students can study the mechanical design, while the kinematic analysis employs the Modified Denavit-Hartenberg convention, providing valuable hands-on experience with theoretical concepts. The arm is operated via an Arduino Mega 2560 controller, with a programmed algorithm that handles the execution of movement paths. To ensure students grasp the importance of accuracy and system performance, MATLAB simulations are utilized to verify these aspects. Experimental tests are conducted to measure the system's repeatability and efficiency, proving its stable and reliable operation. Future enhancements include implementing advanced control algorithms and integrating vision-based object tracking to improve precision and autonomy, thereby offering students exposure to cutting-edge robotics technology. Evaluation rubrics presented in this paper were designed specifically to guide and evaluate the learning process.

Keywords:

Challenge learning, laboratory-based learning, prototype design, prototype development.