Kazi Ragib Ishraq Sanim

I was in charge of the mechanical structure of the robotic arm. In Bangladesh, powerful servo motors (above 8 kg-cm torque) are not available in the market. Importing those would have cost us a fortune. After many trials, I was able to come up with a design eliminating the need for powerful servos. The design used the rack and pinion method for converting rotating motion into linear motion. I planned to 3D print the whole setup. Unfortunately, the team could not afford to 3D print the entire structure. So, I improvised and made my own version of rack and pinion with a pinion collected from a broken photocopy machine and a teethed belt that had matching teeth profile with the pinion.
The arm had 4 degrees of freedom and could pick up weight up to 300 grams. It could pick and drop a block to it's designated slot by identifying printed Circle/Square/Triangle using Image Processing in MATLAB.