Please be kindly noted that Gallery will be under scheduled maintenance on Thursday, June 21st UTC 4am-6am.During the time system will not be available,thanks for your understanding and support.

×

Electronic Hand

Electronic Hand

  • Raasrendering-b33981e3-0181-4ff4-b59e-22396a2db38d-3500-3500

    Environment:None

    Rendering Quality:Final

    Exposure:Native

    Render Time:1 hour 35 minutes 33 seconds

    Resolution:4000 x 2250

  • Raasrendering-46891324-1da2-483f-9720-c966514958d3-3500-3500

    Environment:None

    Rendering Quality:Final

    Exposure:Native

    Render Time:45 minutes

    Resolution:4000 x 2250

  • 3dmodelthumbtraninprogress80x80
Description

This is an electronic hand that I designed for the club I'm involved with, Digi-Digits. We are aiming to replicate the mechanics of a human hand by using fishing-line that will act as tendons. The fishing line will be connected to the shaft of the motor, then routed through channels in the bottom-side of the finger, and tied off near the tip of the finger. When the fishing-line is wound around the shaft of the motor, the tension of the string will cause the fingers to close toward the palm. Elastic bands will be attached from the back of the palm to the top side of the fingers in order to return them to the open position when the tension of the fishing-line lets off. There is a servo with a gear to control the side-to-side motion of the thumb. The palm is rendered in glass so that you can see the motors, but the actual hand and fingers will be printed in PLA plastic.

Comments
X176

This model is more of a proof of concept at the moment, and we were aiming to keep it very low cost by using parts that we already had. You are correct that these motors will not be able to deliver enough force for this to be a functional hand. I had looked into linear actuators, but we decided not to used them for the first prototype due to cost. Thanks for your help!

4 months ago
User_x176

OK, I looked. Those R130 motors don't have nearly enough power. Perhaps with enough gear reduction but there is not space for that. You might want to look into these linear actuators: https://s3.amazonaws.com/actuonix/Actuonix+PQ12+Datasheet.pdf Notice the spec's force is great than 3N.

4 months ago
User_x176

I've been looking into the design of human-like hands and found yours. I assume you know about the "Ada Hand" from Open Bionics. Yours is a little different. I wonder about the power. Have you done any prototyping work with just the motor? How much force can you put on the string?

4 months ago
X176

They are specific motors. The motor can be found here: https://astralrobot.com/products/2-pack-r130-small-dc-motor-3-6v-0-35-0-4a-8000-rpm
and the micro servo can be found here: https://www.adafruit.com/product/169?gclid=Cj0KCQiAuP7UBRDiARIsAFpxiRL-BS1UTmm1CppBrTAn8y6oSoGpuEgn7J0kIoqSCHyNxRmmcSp6934aAnoLEALw_wcB

4 months ago
User_x176

did you model a specific motor are are they arbitrary?

5 months ago
X176

Looks fine. Maybe you might consider making the motors A motional and have the line run like an elevator cable intead. The motors have to run in both directions. And you might want to add pulleys to the ends of the fingers and the motors.

5 months ago
Similar projects
EXPLORE MORE
EXPLORE MORE
EXPLORE MORE
EXPLORE MORE
EXPLORE MORE
X176
Daniel Shank
United States of America
OPEN/DOWNLOAD THE MODEL

The license and other terms for contributing and using assets in the Autodesk Gallery are found in theAutodesk Terms of Use.

Statistics

  • 1.7 K
  • 6
  • 10
Industries

Categories

Products

Tags

Autodesk Online Gallery

© 2014 Autodesk, Inc. All rights reserved.

All use of this Service is subject to the terms and conditions of the applicable Autodesk terms of service accepted upon access of this Service.

This Service may incorporate or use background Autodesk technology components. For information about these components, click here: http://www.autodesk.com/cloud-platform-components

Trademarks

Autodesk, the Autodesk logo, and Fusion 360 are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates.

All other brand names, product names or trademarks belong to their respective holders.

Third-Party Software Credits and Attributions

Ruby gems is Copyright (c) Chad Fowler, Rich Kilmer, Jim Weirich and others. Portions copyright (c) Engine Yard and Andre Arko

bootstrap-select.js is Copyright (C) 2013 bootstrap-select

Backbone.js is Copyright (c) 2010-2013 Jeremy Ashkenas, DocumentCloud

Apple-Style Flip Counter is Copyright (c) 2010 Chris Nanney

imagesLoaded is Copyright © 2013 David DeSandro

jQuery is Copyright 2013 jQuery Foundation and other contributors http://jquery.com/

jQuery timepicker addon is Copyright (c) 2013 Trent Richardson

jQuery ColorBox is Copyright (c) 2013 Jack Moore

jQuery.gritter is Copyright (c) 2013 Jordan Boesch

Masonry is Copyright (c) 2013 David DeSandro

Underscore is Copyright (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative

Reporters & Editors

underscore_string is Copyright (c) 2011 Esa-Matti Suuronen esa-matti@suuronen.org

Icanhaz.js is ICanHaz.js is Copyright (c) 2010 Henrik Joreteg (Mustache and Mustache.js are Copyright (c) 2009 Chris Wanstrath (Ruby) and Copyright (c) 2010 Jan Lehnardt (JavaScript) respectively)

Calendario is Copyright (c) Codrops 2014 by tympanus

All the above software components are licensed under the MIT license.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


Portions relating to lightbox are licensed under Creative Commons Attribution 2.5 License (http://creativecommons.org/licenses/by/2.5/). Lightbox was authored by Lokesh Dhakar (lokeshdhakar.com).