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Accessibility · Human-Centered Design

A-JUST-
A-HOOK

an accessible bag hook for a student who needed one that actually worked for him

In Active Use ✓ Apr – Jun 2025 Team of 4 Project Manager Wood + Metal SolidWorks Human-Centred Design
📍 currently in daily use at
Julia S. Molloy School, Chicago
Final hook prototype with backpack
01 — The Brief

ACCESSIBILITY MEANS
DESIGNING FOR THE INDIVIDUAL

Our user at Julia S. Molloy School has supinated wrists and limited shoulder mobility. Standard school hooks were mounted too high to reach and sat too close to the wall — his wrists would hit the surface on every attempt. We designed a height-adjustable, extended-clearance hook he could operate with one hand.

02 — Technical Drawings

FROM SKETCH TO SPEC

Orthographic engineering drawing with dimensions
orthographic drawing — front + side views
Labelled component diagram
component diagram — labelled parts
Height adjustment track drawing
height adjustment track — 15in slot
Isometric sketch of mounting bracket
mounting bracket — isometric sketch
03 — CAD

MODELLED IN SOLIDWORKS

Full hook render mounted on wall
photoreal render — wall mounted
SolidWorks hook assembly
hook + sliding mount assembly
Spring toggle pin SolidWorks part
spring toggle pin — part model
Height adjustment track SolidWorks
height adjustment track
04 — Fabrication

BUILT IN THE MAKERSPACE

Everything fabricated in-house at Northwestern — wood milled, shaped, and stained. Only the spring toggle pin was sourced externally.

Drilling in the makerspace
drilling the track holes
Varsha holding early prototype
early prototype — iteration 2
3D printed hook prototype
3D printed hook — iteration 1
05 — Process

5 ITERATIONS, 1 USER

Every prototype was tested directly with the student and his teacher. Each round surfaced something new — wrist clearance, latch force, mounting stability.

01
Lower fixed hook
02
Add rail
03
Extend arm
04
Toggle pin
05
Deployed ✓
06 — Final Product

IN ACTIVE USE AT
JULIA S. MOLLOY SCHOOL

Final hook prototype
final prototype
Hook with backpack
in use — bag hanging
demo — height adjustment
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