Foldable electric scooter
Electric scooter conept
Year
2024
Type of Project
R&D / Engineering Project
My Role
Full-Stack developer
Case Study
Objective
Create a compact foldable electric scooter that folds with one easy movement. The goal was to design a mechanism that allows the scooter to be quickly folded for storage or transport, for example in a car trunk, on public transport, or carried like a rolling suitcase. The design also needed to support different versions for users of different sizes — from children to adults — while keeping the same folding principle.
Process
Working alone and consulting with the client, I developed the folding concept from scratch. First, I analyzed the required motion and built a kinematic scheme using levers and a slider. The system had many parts moving in different planes, so I divided the motion into simple planar movements and calculated the forces, lever lengths, and synchronization.
The kinematic model was fully linked to the 3D model in Creo: changing key parameters (like handlebar height or overall size for a child or adult version) automatically updated the whole assembly. This parametric approach allowed creating different versions of the scooter quickly while keeping the same folding mechanism.
After the theoretical design, a physical prototype was developed. The lever system proved to work correctly in early tests.
Outcome
The project produced a working folding mechanism that folds the scooter with one smooth movement. The system is compact, easy to transport, and stable. The parametric model allows creating versions for users of different sizes, from children to adults, without changing how the mechanism works. The prototype confirmed that the design is mechanically feasible.
Standout Features
One-movement folding using a synchronized lever-and-slider system.
Parametric 3D model linked to the kinematic scheme; changing key sizes automatically updates the assembly.
Complex motion simplified into planar movements for reliable synchronization and predictable forces.
Versions for different users, from children to adults, all using the same folding principle.
Fully mechanical solution — no electronics or motors; folding works purely through geometry and mechanics.