Solo student project

PATHFINDER

My first autonomous student robot, designed from scratch to escape a maze

Pathfinder is the first real robotics project I built on my own during engineering school. The goal was to design, from a tightly constrained set of components, a robot able to escape a maze autonomously. More than anything, this project taught me how to turn a simple constraint into a coherent, mechanically clean, and functional system.

ArduinoAutonomous robotMaze solvingUltrasonic sensing3D printingMechanical integration
Clear illustration of the Pathfinder robot

A foundational project built under tight constraints

Pathfinder was my first solo student project, with a clear brief: design a robot from a very limited set of imposed components.

The constraint was part of the point. Locomotion, sensing, power, and structure all had to fit into a simple, credible, and actually functional system.

With only two servo motors, one Arduino, one ultrasonic sensor, one battery pack, and 3D-printed parts, the challenge was not to add artificial complexity, but to design something right.

A deliberately ambitious mechanical design

I took visual inspiration from Wall-E for the robot’s design.

That choice led me to use tracks instead of wheels, which created a higher mechanical challenge than a simpler architecture would have required.

I also paid attention to integration quality: no visible wires, the battery pack hidden in the back, and access to power through a properly integrated hatch.

Even at this scale, I already wanted the robot to feel like a coherent object rather than a rough school assembly.

A simple, deliberate, and effective control logic

The control strategy was intentionally simple: continuously follow the right wall.

The goal was not to build a complex algorithm, but to obtain reliable behavior with very limited hardware and software resources.

This project taught me that a system can be technically simple while still being well designed if strategy, mechanics, and integration work together.

What Pathfinder taught me

Pathfinder was an important first step in the way I think about robotics.

It taught me that mechanical choices matter as much as code, that constraints can improve a project, and that a robot becomes much more credible when its integration is clean.

It is a small robot, but a foundational project in my path.

Contact

Let’s talk

If you would like to discuss Pathfinder or what it represents in my journey, feel free to contact me.

francoismarty.work@gmail.com

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