Aaron Ho Yat Fung, Isaac Zachary To, Justin Wang Tou Duong and Ngo Hei Leung are four students from the Diocesan Boys’ School in Hong Kong. Diocesan Boys’ School of Hong Kongand have developed the world’s smallest robot, with a height of 141 mm.
In addition to setting a world record, this humanoid robot is designed as a “small, low-cost, rechargeable and programmable” tool for STEAM (science, technology, engineering, art and math) educational workshops.
Design and assembly of the world’s smallest robot
For their design, the students employed computer-aided design (CAD), first defining the technical specifications and necessary components of the robot and then collaborating with a factory to manufacture custom servo motors according to their needs.
Servo motors, or servos, are electronic devices that allow specific parts of a machine to be rotated and moved with precision. These servos facilitate smooth movements of the robot’s legs and arms.
Notably, the team developed a 16-channel servo control board to program and manipulate these devices. The robot also features acrylic panels and 3D printed components.
Once all the parts were assembled, the students proceeded to assemble the robot, starting with the legs, using eight servos for the feet, knees and hips, ensuring that the humanoid could walk on two legs. Subsequently, they assembled the arms, using servos to allow the movement of shoulders and elbows.
Finally, they determined the optimal location for the battery and control board. Initially, the planned battery unit proved to be too large and heavy for the robot. However, they opted for a smaller 7.4V lithium-ion battery. The control board was placed on the back of the robot, allowing the use of on-board buttons for control.
To top it off, the students also created a mobile application to control the robot’s actions.
The importance of innovation in STEAM education
The creation of the world’s smallest humanoid robot by Hong Kong students is not only an achievement in the field of robotics, but also underscores the importance of innovation in STEAM education.
This project demonstrates how the integration of technology and creativity can inspire young people to explore and develop ingenious solutions to complex problems. By fostering these types of educational projects, students are prepared for the challenges of the future, promoting critical skills such as critical thinking, problem solving and collaboration.
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Source and photo: inceptivemind.com
Video: B.C. Begley
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