In recent years, 3D printing technology has presented a vast amount of new techniques and solutions to different fields. The prosthetic and orthotic field is not an exception. The MACY foot was the result of the effort to solve this global problem. Taiwo Akinsanya of Dynalimb Technologies has used 3D printing to design a prosthetic foot that could be affordable and accessible for anyone to print. MACY foot has a compressible heel and flexible keel, is water resistant, and can be customizable to practically any color. Over 30 patients are currently using this foot in Nigeria. Continued research on the MACY foot will help better understand the effects different variables have on the performance of the foot such as material or print settings. This study observes how different infill percentages affect the forefoot and compare them to a flexible keel foot currently on the market. 3 feet were printed using 95A TPU each with a corresponding infill percentage of 40%, 60%, and 80%.
