The following study provides a solution to developing a low cost, 3D printed prosthetic arm controlled using electromyography sensor. Firstly, a literature review and a research were carried out to investigate possible solutions and existing products for different upper limb prosthetics. Concept designs were generated through this process and different solutions to the problems faced by common prosthetic arms, in the market were address. Possible solutions have been mentioned, discussed and often implemented within the final design.
The project was broken down into 3 sections, the mechanical design, electrical design and the software implementation. The mechanical aspect of the project involved designing of parts using SolidWorks, and the manufacturing of parts using a ‘Prusa’ type 3D printer. The necessary sensors, controllers and actuators were purchased, and other electronic design was completed. The final stage related to the programming of the arm and implementation of the different functionality.
The arm was then critically evaluated and compared with popular commercial solutions. The general aim of the project was fixed from the initial stage; however, the finer details were determined post research. The project was constraint to different factors, such as time and cost. The achieved product was a Myo-electric powered below elbow prosthetic arm actuated using servo motors and can mimic basic tasks of the human arm.