In the previous research on Redesigning a CT Scanner, the study demonstrated that the aluminium alloy used in conventional CT gantries could be replaced with Carbon Nanotube (CNT)-reinforced Magnesium alloy (AZ91D-CNT) to significantly improve the strength-to-weight ratio. That work focused primarily on a direct modelling approach and finite-element analysis of the gantry’s structure.
However, my passion for mechanical design and product development pushed the boundaries of this study further. I challenged myself to extend the work beyond theoretical analysis into the practical domain, applying 3D modelling, experimenting with prototype fabrication using PLA material, and creating a scaled, functional model. The extended study also included the design of gears, selection and torque calculation for a DC motor, and the physical assembly of the prototype.
This continuation reflects both my curiosity and my personal drive as a mechanical engineer to transform analytical design into a real, working system.
I undertook the task of designing, fabricating, and testing a compact two-finger robotic gripper capable of securely holding an egg using a 6 V DC motor and a worm-gear transmission system. The design aimed to provide sufficient gripping torque, prevent back-driving through self-locking action, and ensure smooth and symmetric motion of both fingers.
This project was an extension of my previous conceptual design (Egg gripper), developed further into a functional prototype to verify its mechanical performance through practical experimentation. It allowed me to apply key mechanical design principles such as torque transmission, gear ratio selection, and force analysis to a real 3D-printed mechanism. Through this work, I gained hands-on experience in CAD design, fabrication, assembly, and functional testing using DC motor actuation. Overall, I wanted to demonstrate a simple, reliable, and low-cost robotic gripper capable of handling fragile objects such as an egg without causing damage.