Full Robotic Hand based on Robotic Hand v3.0

thingiverse

This robotic hand project involves an original creation by embeddedjunkie. To enhance its functionality, a forearm and stand were designed as part of a school project. The hand's credit goes to the original creator. A redesign is planned to make the forearm more compact and realistic-looking. Videos showcasing the hand's functionality are available at http://tinypic.com/player.php?v=f0nexe&s=5#.UtRfI6Hfu5l and http://tinypic.com/player.php?v=359l7qx%3E&s=5#.UtRfJKHfu5l. For instructions on assembly, refer to embeddedjunkie's original design, using rubber bands for tension. Adafruit servos (http://www.adafruit.com/products/1143) can be used, with HornFits providing a more linear range of motion. Print five HornFits and the top and bottom of the forearm, along with the stand. Attach HornFits to servos as shown in the picture, placing one servo in each holder at the bottom forearm. Connect strings from fingers to servos, with 0 being fully open and 180 closing a finger. The OpenSCAD file is available for customization. Costs without printed parts were around $100 but can be reduced by using alternative microcontrollers or cheaper servo sources.