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Limitless Canvas

Limitless Canvas is an interactive drawing system developed for ALYN Children’s Rehabilitation Hospital. The project explores how adaptive interfaces can expand creative agency for children with severe motor limitations. Working with the clinical team, I designed a pendulum based input device that transforms minimal physical movement into rich, layered digital artwork. The system reframes the act of drawing as a therapeutic, empowering experience, enabling each child to express themselves through motion adapted to their abilities.

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Process
01
Understanding Motor Constraints
The medical team explained that the children’s motor abilities varied widely: some could move only their head, others a single finger. This range of constraints shaped the core design requirement - the tool had to respond to minimal, inconsistent input while still allowing expressive output. I identified that the system needed adjustable height, low friction motion, and clear visual feedback.
02
Designing the Interface
A suspended pendulum became the ideal input device - comprised of an acrylic rod and 3D-printed sphere. Its height could be customized for each child, and by harnessing inertia, even the smallest push generated meaningful movement.
03
Motion Processing andVisual Output
I developed a custom drawing engine in Processing that interpreted the pendulum’s oscillation to produce intricate, layered digital artwork. the system responded with generative patterns that evolved over time.