Abstract—Over the last decades, biomedical engineering prosthetics become one of the most essential grounds. Prosthetic hands are rapidly evolving. Therefore, for designing prosthetic components, it is essential to improve quality such as make it affordable and improve patient comfort and mobility by making them lightweight and easy to wear. In this paper, we proposed a myoelectric controlled prosthesis hand. We can fabricate and manufacture customized cost-effective, small volumes of 3D printed hand which is interesting. The total weight of an adult hand is about 1000 gm including a battery. The prosthetic hand is built up with low-cost materials and techniques, the cost of manufacturing will be approximately US$145. The hand can grip objects of different shapes and sizes. The 3D printed hand can rotate its wrist like a human hand. The prosthetic hand is capable of showing some types of human gestures. Keywords—Prosthetic Hand, sEMG, 3D printing, Arduino. I. INTRODUCTION N Bangladesh many people are prone to accidents every year. Bangladesh Passenger Welfare Association said in its annual report that in 2019 at least 7,855 people were killed and 13,330 others are injured in 5,516 road accidents across the country [1]. Every year many people lose their limbs in several accidents. Once a limb is totally or partially lost it is very difficult for him to come back to normal life because every part of a human body is preciously important in terms of functionality for the daily life of human beings. To improve the life of a disabled person, it is essential to develop a prosthesic. In the case of children to increase the acceptance rate it is needed to adopt prosthetic hands from a very early age, preferably under 2 years of age with upper limb [2]-[4]. According to various research surveys, if one gets a powered prosthesis just after his loss of a hand, the hand rejection rate is lower in the following years of their life [5], [6]. Despite several research works aimed at inventing prosthesis hand, a survey shows that 35-50% of amputees do not use their prosthesis hand regularly for lack of comfort, high cost, and degree of freedom due to low aesthetic appeal [7]. Due to these limitations, we have developed a hand S. S. A. Khan is with the Department of Computer Science and Engineering (CSE), Central Women’s University, 6 Hatkhola Road, Dhaka, Bangladesh (e-mail: shermin03@gmail.com). S. J. Ferdous and S. Chakraborty are with the Department of CSE, Central Women’s University, Dhaka 1203, Bangladesh (e-mail: syedaema74@gmail.com, sushmitac95@gmail.com). prosthesis that can potentially address these limitations. The following design principles were taken into attention to avoid prosthesis rejection [7]. Our proposed prosthesis hand is 1) Low powered 2) Lightweight 3) Affordable for common people of Bangladesh 4) Comfortable 5) Scalable for every age of people Our hand consists of a surface Electromyography (sEMG) sensor, Arduino Uno, and metal gear servo motors to provide specific movements. In this research, we used the Ninapro database for sEMG signals, which is a publicly available multimodal database to research prosthetic. The system components were implemented into a 3D printed hand. sEMG signals are captured via special EMG sensors from biceps brachia muscle through some surface electrodes. The signals are then filtered and amplified. The filtered and amplified signal sent to the Arduino is used for producing motorized work. II. LITERATURE REVIEW Recently, there are several kinds of research that describe the development and design of hand prosthesis. There also exists commercial hand prosthesis with high-tech features. Manfredo et al. [8] characterize the Ninapro database and its use as a benchmark for hand prosthesis assessment. They present standard classification results using a variety of feature representations and classifiers. Their comparison shows that simple features such as waveform length and means absolute value and can achieve similar performance to the marginal discrete wavelet transform. Pai [9] designed & printed a 3D printed multi-fingered hand that is capable to hold and place the object at a specific location. They represent an innovative design and simply manufacturable 3D printed myoelectric multi-fingered hand at low cost by using a kinematic solution. The hand was able to achieve 5 DoF with the individually triggered finger. Ccorimanya et al. [10] implemented a design affordable, lightweight, and easy to wear prosthesis hand, especially for children. Commercial prosthetic hands for children are often too expensive, burdensome, and difficult to use. In their research, they attempt to address these issues with a novel design for a prosthetic hand for children. Their proposed prosthesis implements the use of sound biofeedback and a soft socket with in-liner electrodes. They improve the control Design and Development of a 3D Printed Myoelectric-Controlled Prosthesis Hand Using sEMG Sensor Sher Shermin Azmiri Khan, Syeda Jannatul Ferdous, Sushmita Chakraborty I World Academy of Science, Engineering and Technology International Journal of Biomedical and Biological Engineering Vol:15, No:1, 2021 18 International Scholarly and Scientific Research & Innovation 15(1) 2021 ISNI:0000000091950263 Open Science Index, Biomedical and Biological Engineering Vol:15, No:1, 2021 publications.waset.org/10011734/pdf