Braking system for pediatric walker

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In this project, my senior (Zvonimir Pusnik) and I were tasked to design a braking system for the some children, hoping to enable her to use bathroom independently without requiring any help from others.

Zvonimir and I brainstormed and inspected multiple braking setups, including traditional bike V brake and disc brake. After having some discussion with our supervisor, we decided to saw the original triangular shaped stopper into half, and make it bi-directional, and combined this modified stopper with bike brakes cable.

*the sketches for this device wasn't recorded at that time. :(