Grant Leslie
Work/Foam Core Motorcycle

Foam core motorcycle prototype

Foam Core Motorcycle

A full scale foam core motorcycle built in two weeks, translating Art Nouveau curves into a rideable prototype using only lightweight materials.

Year
2025
Industry
Industrial Design / UX Design
Team Size
6 Members
Project Duration
2 weeks
Team collaboration and finished foam core motorcycle prototype
How might we express the organic curves and elegance of Art Nouveau through the design of a motorcycle using only lightweight, low cost materials, ensuring it remains functional and visually coherent?

In this two-week studio project, our team was challenged to design and construct a full scale motorcycle inspired by the Art Nouveau movement using only lightweight materials such as foam, cardboard, and tape. I contributed across multiple stages from concept generation and physical prototyping to hands on construction and user testing, ensuring the design not only reflected our theme but could also function and be demonstrated effectively.

Grant presenting the foam core motorcycle challenge

Ideation

Ideation & Concept Development

Used AI image generation tools (like Grok, GBT, Midjourney) to explore early design directions and aesthetic references. By feeding prompts related to "Art Nouveau curves, motorcycles, foam core, flowing structure," we quickly created moodboards and visual mock ups that helped the team align on the desired look and feel.

Ideation and concept development sketches

Prototyping

CAD & 3D Prototype

Once we finalized our concept, we collaborated on a Rhino CAD model to define the structure, surface geometry, and paneling. A scaled 3D print was produced to verify proportions and construction feasibility.

CAD model and early 3D prototype
Refined 3D prototype of the motorcycle

Build Process

Construction & Build Process

Working together, we built the motorcycle at full scale using foam, cardboard, and plexiglass. I helped cut and assemble panels, build the seat and a functional exhaust compartment with hidden storage, and tested the bike's usability as the rider. Throughout the build, I problem solved structural issues and adapted designs in real time, applying an iterative prototyping mindset similar to UX processes.

Construction and build process
Construction and build process
Construction and build process
Construction and build process

Exploration

Building With Paper to Explore Depth and Design

We started by using simple paper and cardstock to visualize form and depth while keeping our overall design inspired by the Art Nouveau theme. Every layer helped us shape the silhouette of the motorcycle, focusing on proportion, balance, and organic flow. The paper allowed quick iteration and lightweight structure while keeping the design flexible, detailed, and true to the elegant, fluid forms characteristic of Art Nouveau.

Building with paper to explore depth and design
Building with paper to explore depth and design

Details

Adding Realistic Parts and Interactive Features

Our team expanded the build by integrating realistic parts like a turnable handlebar with both real and mock buttons, golden exhaust tips, a foam seat, and a small under seat storage compartment. The exhaust pipes were crafted from cardboard tubes, giving texture and form that represented real mechanical components. Each added feature pushed the prototype closer to a believable, full scale concept motorcycle that reflected the Art Nouveau influence through its curves and crafted detailing.

Adding realistic parts and interactive features
Adding realistic parts and interactive features
Adding realistic parts and interactive features

Testing

User Testing

I took the lead on user testing, focusing on UX principles like comfort, accessibility, and realism. I tested the ride height, handlebar reach, and general posture to ensure the experience aligned with what a real rider would feel. Through iterative feedback, I made adjustments to positioning, height, and component spacing to create a balanced, human centered prototype that felt both functional and immersive.

User testing the foam core motorcycle
User testing the foam core motorcycle
User testing the foam core motorcycle

Outcome

Final Presentation and Comparison to Real Models

In the final presentation, I demonstrated the finished prototype by riding it and showcasing its functionality. The design captured the elegance and curves of Art Nouveau while remaining stable and visually cohesive, earning positive feedback for creativity and craftsmanship.

We then placed our paper built motorcycle next to a real sport bike to emphasize the level of scale accuracy and design intent. The display showed the contrast between concept and reality while highlighting the craftsmanship of our model.

Final presentation comparison with real motorcycles
Final presentation comparison with real motorcycles
Final presentation comparison with real motorcycles
Final presentation comparison with real motorcycles

Team

Team Collaboration and Finished Prototype

These final photos capture our full team with the completed prototype and the foam motorcycle topped with a real helmet resting on the seat. It represented the collaboration, creativity, and UX focused process that brought the concept to life from sketch to structure, successfully combining Art Nouveau inspiration with practical design thinking.

Team posing with the foam core motorcycle prototype
Team collaboration and finished prototype close-up