top of page
IMG-5161_edited.jpg
Overview

CARE E-Bike

Brief

Find a new application for an e-bike, and design and build one that addresses identified needs in innovative ways.

Format

13 weeks, 2023

Team members: Callie Rigsbee Andrew Brown

Skills

User research

Fusion 360

Prototyping

Visual design

Figma

Branding

System design thinking

Understanding First Responders

Through extensive background research, interviews, and site visits with local firefighters, EMTs, and police officers, my team discovered that the greatest potential for e-bikes lies with paramedics (EMTs).

Research
EMTs focus logic.png

An EMT's Job

To deepen our understanding, I developed a user journey and Value Proposition Canvas for EMTs that served both to recognize pain points and as a baseline against which we later gauged the value created by our e-bike design.

Guiding Insight

First responders pride themselves on being first to arrive on scene. However, the average EMS response time in the US is 14 minutes

Opportunities & Design Criteria

  1. Seamless integration: incorporation into existing systems without disrupting the current workflow 

  2. Maneuverability: ability to access critical crisis areas that bigger vehicles (e.g. ambulances) cannot

  3. Visibility: command of attention on the road through color and light indicators

  4. Navigation: integrated GPS system for efficient wayfinding and retrieval of dispatch information

  5. Storage: easy access and storage of medical equipment

Ideation

Mood Boards

At the start of the ideation process, we compiled several mood boards to guide our design decisions and visualize the emotions we want our design to provoke. We also used DALL-E as inspiration for form, patterns, and color. 

Generated using DALL-E

Generated using DALL-E

Frame Design &
Initial Concepts

We explored a variety of forms for the bike frame, starting with the side view. When refining the concepts, we considered the placement of the basket, what to store, decals, color theory, and frame ergonomics. My contributions are shown below.

Refining the Concepts

We narrowed the ideas down to three concepts to explore further, with a focus on form and storage placement.

1

2

3

Keeping the design criteria in mind, we further fleshed out the design for it to be translated into a CAD model.

Development

CAD Development

Now that we have our vision, it's time to see it in 3D. The CAD model allowed us to see the physical space that the model occupies, how colors and decals should be used, and more areas of improvement.

*All CAD models and renders shown are my work.

Side view v163.png

Refinements

Some changes we made: removed the top tube for a quicker on/off process, refined the front basket, integrated a backboard, applied color theory, and reworked the decal placement for better visibility.

Front angle 1.PNG
Final Model

The CARE E-Bike

Digital interface + button controls

Side view_edited.png

Backboard storage

Removed top tube 

Medical bag storage

Features & Innovations

The refined model features medical bag storage; an integrated, foldable backboard; rear rack storage; and an interface system for navigation and quick access to dispatch information.

Backboard angle_edited.png
Back rack angle 2 backboard_edited.png
Interface screens_grey background.jpg
Front basket render_edited.png
Back rack angle 2_edited.png
Interface head-on.PNG

Bringing
             to life

CARE logo_gray background.png
IMG-5157.jpg
Fabrication

The Fabrication Process

From the CAD model, we brought the bike into its physical  form by 3D-printing the frame, applying finishes, attaching the storage racks, fabricating the backboard, and fully assembling the parts to create a functional bike.

MAKING

THE FRAME

MAKING

THE COMPONENTS

IMG-5149.jpg
IMG-5072.JPG
CARE logo_gray background_edited.png

Takeaways

It was amazing to see all aspects of my design education come together in the design of a product, service, and system. It incorporated  CAD, visual design, branding, color theory, hierarchy, needfinding, and prototyping through the full design thinking process. Faced with many unexpected challenges throughout, I learned to make quick decisions, delegate tasks based on skills and interest, and trust the process. Also, Bondo smells terrible.

© 2025 Hannah Wittenstein

bottom of page