Physical prototype

Images and notes from building the real, testable version.

This page documents the hardware we built during the Designathon. It shows the spring-assisted wheel, how we tested it on stairs, and how it mounted to the walker frame. The brake section demonstrates our safety-first approach.

Prototype views

Key pieces of the built system.

Prototype Wheel

Five wheel final prototype

Printed/assembled final wheel.

Prototype on stair

Stair test

Test of five-wheel concept on stair.

Walker attachment

Walker attachment

Bracket/leg connection to standard walker tubing.

Rear Leg Release for Adjustment

Preventing rollback between steps.

Brake clip

Handle clip

Clip/stop mounted near the wheel to engage on stair edge. Add final photo here.

Brake handle

Handle

Ergonomic handle that engages the tensioning system connected to the leg assembly.

Brake mechanism

Adjustment mechanism

The handle, which is clipped to the walker frame, engages a mechanism at the leg supports to adjust height.

Additional prototype photos

Close-ups and extras.

Extra prototype image 1

Model walker wheel

Modeling generic walker wheel to test multi-compatibility of our wheel attachment.

Extra prototype image 2

3-Wheel Spring Trial

Testing out spring versus passive force.

Extra prototype image 3

3D Printing

Long print times and material testing.