The Raptor Reloaded

The team behind the original Raptor has released the Raptor Reloaded, an updated and re-factored version of the Raptor Hand.  The entire device was modeled in Fusion 360, a free CAD tool that can import and export most standard solid body modeling formats such as STEP and IGES.  By designing the hand in a tool compatible with numerous CAD packages, we hope to lower the barrier to contribution to the e-NABLE project for engineers and designers.  Previously, if a designer wanted to make a small adjustment to a part of a hand, they’d have to rebuild the entire part in their CAD software before they could make the change.  Now they can download the source files and just spend their time making the specific change they had in mind.  With this new set of source files, we hope to improve the pace of research and development within the design community.

Raptor Reloaded FILES
You can also find the files pre-sized in various increments for you HERE

Assembly Tutorials – For Kids By Kids –



Assembly Instructions:

Detailed assembly instructions can be found on Instructables.

Changes in this design include:

  • Improved print-ability due to custom modeled supports
  • Cyborg Beast compatible sizing
  • Improved dovetail geometry
  • New tensioner retention clip
  • Easier to use tensioner pins
  • Low profile elastics with two tie-off options
  • More access to elastic and flexsor routing channels
  • Debossed versioning information on palm and gauntlet
  • Slimmer, more anthropomorhpic fingers
  • Narrower knuckle block
  • More intuitive assembly (new one-way proximals)
  • Thorough documentation and modular design
  • Source files in native Fusion 360 format, also STEP and IGES
  • Additional velcro-mounting options as well as traditional velcro loop and leather options
  • Re-oriented snap-pin head recesses to improve printability
  • Knuckle pins are now removable, making the hand easy to repair and upgrade
  • Strengthened tie-bars on finger tips



By accepting any design, plan, component or assembly related to the so called “e-NABLE Hand”, I understand and agree that any such information or material furnished by any individual associated with the design team is furnished as is without representation or warranties of any kind, express or implied, and is intended to be a gift  for the sole purpose of evaluating various design iterations, ideas and modifications. I understand that such improvements are intended to benefit individuals having specific disabilities and are not intended, and shall not be used, for commercial use. I further understand and agree that any individual associated with e-NABLE organization shall not be liable for any injuries or damages resulting from the use of any of the materials related to the e-NABLE hand.

37 thoughts on “The Raptor Reloaded

  1. Pingback: Seattle Handathon
  2. Hi I was Just looking at your printer hands they look amazing.I was born with no digits on my right hand I have a serious conscience with showing it I’m 30 years old and I can’t leave my house without covering it with a cardigan i was bullied terribly at school which never helped .I’ve been looking for years for something to help my confidance and saw this. I was wondering if you could help me it would be fantastic if you could reply to this many thanks Madeline x

  3. About how big is a basic demo of the Raptor Reloaded (like the dimensions)?

  4. Hi there, l was wondering if this model is completely open source or if l have to pay rights to produce it

      • The problem is that there have been several people asking me to print one for them but l have to sell them otherwise lm gonna run out of money by printing for free, thats why l’m asking, l want to do things right so if l have to pay rights or donations or whatever l will.

  5. Hey guys! I am trying to build a raptor reloaded for a friend of mine. I have access to a 3-D printer and have already ordered the extra parts necessary to build this type of hand. He is in need of a prosthetic right hand. However, I found out you only have the left hand available. Is there any way that you can provide a diagram similar to the one available only with parts for a right hand?

  6. I would like to purchase a complete set of 3D printed parts for the Raptor reloaded so I can build with my students. Don’t yet have a 3D printer. Any recommendations as to where or who?

    • Hi Karen – we don’t sell the parts but if you call around to other schools, universities and now many libraries, some may have 3D printers that they would let you use or use for a fee or for you purchasing the materials needed to print. You can also get them printed through places like Shapeways, 3D Hubs and I think even places like Home Depot and some other hardware stores now have 3D printers “for hire.”

      • Great! Thanks for the information. Can’t wait to get started on this.

  7. What should the settings (quality, raft, support, layer height, # of shells, infill, etc) be set to for printing the Raptor Reloaded parts on a MakerBot Replicator 2X printer? I’ve looked in all the forums, Facebook, website, etc – and can’t find the answers.


  8. Hello, I have a son that is 11 years old. He really desires a left hand can someone please help us?

  9. Hey there! I really love the design of this hand, but I have a problem. My right hand has all the digits, but the muscles on the top of the hand and fingers are all dead to the nerves. So they can grip down, but cannot extend back out past relaxed state. And the wrist hangs limply down. Is there a way to rework this device, so that it provides positive flexing force up and back towards the arm section, but allows for a full hand and fingers to fit inside? That way I can flex down against the flexing force with the good muscles, and relax to let the flexing force lift fingers/wrist as far as I let them relax to? Thanks for this either way.. it’s a start at least!

    • Hi Brian – we have a student working on a design for this currently – called the “Airy Arm.”

      You might connect with some of the folks working on that through the forums. There is a link to the forums under the “Get Involved” tab. 🙂

  10. Hey guys,

    I am currently working to design an add-on to the most recent model of the Raptor Reloaded Hand. I work in Solidworks and tried importing the assembly as IGES and STEP, and the only error I get is in rebuilding the “left hand palm” part. What might be the issue? Thanks!


    • Hello Jin – please visit the forums or Google+ group – volunteers there may be able to help!

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