Back in 2017, I built my first mobile drawing robot for my undergraduate capstone at NYU Shanghai. Some of my design choices at the time were constrained by the resources and timeline. Now that I am back in school, pursing my master’s degree, I wanted to redesign the robot. My main goal was to make the robot smaller so it becomes more portable. I also thought this would be a nice challenge to practice my CAD skills and deepen my understanding of the electronics.