Sophie Borsboom Portfolio

Balloon car

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Toy Cars

The HAN challenged us to design a toy car powered by the air from a balloon. While balloon cars already existed, they wanted a new set that could fit together and be produced using injection molding, with the prototype made through 3D printing. After researching, we decided to base the set on emergency services like police, ambulance, and fire trucks. I focused on the ambulance, incorporating key features such as a functional rear door and a siren on top. For the 3D-printed prototype, the door was designed to be loose, allowing for a thin, flexible connection in the injection-molded version.

I was already familiar with 3D printing when working on this project, but I learned a lot about click connections and injection molding. Specifically, how we could connect the chassis and the body of the toy car in a way that would allow it to be made using both injection molding and 3D printing. We ended up using a small edge, inspired by the edge used on ice cream boxes to seal them. With this project I learned a lot about how injection moulding is done and how it applies in real-life projects, including considerations such as parting lines, ejector pins, and injection points.

In collaboration with: Guus Christiaans | Olivier Barnas

Client: HAN