robot hand || bionic hand prosthesis prototype

myminifactory

This bionic hand is controlled by an Arduino Nano V3 and uses 4 fifteen-kg servos to move the index, middle, ring, and little fingers, as well as three nine-gram servos to rotate the thumb and pull the thumb and fingers open. The hand's structure is modeled after my own hand, allowing me to create a gel10 mold that fits snugly around it. Initially, I wanted to integrate force feedback into the fingertips using small pushbuttons but encountered difficulties due to excessive friction caused by the wires and gel10 mold in the finger joints. To address this issue, I plan to conduct tests with current sensors to measure the current flowing to the servos and stop them when the current exceeds normal levels. Components used: * 4 x 15kg Servo's (link: https://www.banggood.com/MG995-High-Torgue-Mental-Gear-Analog-Servo-p-73885.html?rmmds=search&cur_warehouse=CN) * 1 x 2.54mm Single Row Male Pin Header Strip For Arduino (link: https://www.banggood.com/10-Pcs-40-Pin-2_54mm-Single-Row-Male-Pin-Header-Strip-For-Arduino-p-918427.html?rmmds=search&cur_warehouse=CN) * 2 x 9g servos (link: https://www.banggood.com/TowerPro-SG90-Mini-Gear-Micro-Servo-9g-For-RC-Airplane-Helicopter-p-1009914.html?p=E01411629100201406T1&custlinkid=359550) * 1 x Arduino Nano V3 (link: https://www.banggood.com/Geekcreit-ATmega328P-Nano-V3-Module-Improved-Version-With-USB-Cable-Development-Board-For-Arduino-p-933647.html?p=E01411629100201406T1&custlinkid=255135) * 1 x DC-DC Step Down Adjustable Constant Voltage Current Power Supply Module (link: https://www.banggood.com/LM2596-DC-DC-Verstellbar-Step-Down-Schaltregler-Power-Supply-Module-p-88252.html?p=E01411629100201406T1&custlinkid=255154) * 1 x 2S Lipo 7.4V (link: https://www.banggood.com/7_4V-2S-2000mAh-8C-Lipo-Battery-Compatible-for-Frsky-ACCST-Taranis-Q-X7-Transmitter-p-1249125.html?p=E01411629100201406T1&custlinkid=669244) * 2 x 5mm Red LED (link: https://www.banggood.com/Geekcreit-375pcs-3MM-5MM-LED-Light-Emitting-Diode-Beads-Resistance-Lights-Kits-Bulb-Lamp-p-1027601.html?p=E01411629100201406T1&custlinkid=669272) * 2 x Pushbutton (link: https://www.banggood.com/100pcs-Mini-Micro-Momentary-Tactile-Tact-Switch-Push-Button-DIP-P4-Normally-Open-p-917570.html?p=E01411629100201406T1&custlinkid=669260) * 2 x 200 Ohm Resistor (link: https://www.banggood.com/Wholesale-Geekcreit-600pcs-30-Kinds-Value-1-14W-Metal-Film-Resistor-Assorted-Kit-20pcs-Each-Value-p-53320.html?rmmds=search&cur_warehouse=CN) * 3 x Springs from old pens * 1 x 1mm diameter steel rod or similar as shafts for the fingers * 1 x Nylon wire * 1 x Somewhat larger spring but less stiff than the springs from the pens (this spring brings the thumb back to its original position) More information about this project can be found here: https://hackaday.io/project/102439-robot-hand-bionic-hand-prosthesis-prototype Video can be found here: https://www.youtube.com/watch?v=Qu_x8T9408U All my project files, instructions, schematics are provided for free so everyone around the world can enjoy them. Feel free to support me so I can create and share even more awesome projects. Any amount of support is greatly appreciated.