Low-Cost 3D Printed Prosthetic palm and Finger

his project is a low-cost prosthetic hand designed to help people perform simple daily tasks such as gripping and holding objects. The hand was designed using SolidWorks and manufactured using 3D printing with PLA material. The design uses a simple mechanical system with strings and rubber bands to control finger movement. When the string is pulled, the fingers close to grip objects, and the rubber bands help return the fingers to their original position. This allows the hand to function without the need for motors or electricity. The goal of this project is to provide an affordable and easy-to-build prosthetic solution for individuals who may not have access to expensive prosthetic devices.3. How It Works The prosthetic hand works using a tendon-like mechanism: Strings act like tendons to close the fingers Rubber bands act like muscles to open the fingers Wrist movement controls the gripping action Materials PLA (Polylactic Acid) – for 3D printing Fishing wire (for strong tendon strings) Rubber bands Screws or pins (for joints) Print Settings (Simple) Material: PLA Infill: 20–40% Layer height: 0.2 mm Supports: Yes (for fingers and joints)