This project aims to develop a lightweight, low-cost orthotic glove that enhances grip strength for individuals with impaired hand mobility, particularly those with osteoarthritis. Unlike existing solutions—such as surgery or restrictive orthotics—this glove uses a passive mechanical system that keeps the hand naturally closed using flat coil springs. To open the hand, a motor-driven pulley system pulls cables attached to the fingertips, working against the spring tension.

The glove's control system includes force sensors that allow users to open their hand with a light touch, minimizing effort. A proportional controller adjusts grip strength based on user input, enabling both "low power" (partial opening) and "high power" (full opening) modes to conserve energy. Key innovations include a force-actuated pulley system that ensures even finger movement, 3D-printed finger rings for component alignment, and a custom knuckle housing to manage mechanical stresses. The glove operates via a finite state machine coded in Arduino, translating sensor input into grip behaviors ranging from soft to firm.