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


Raptor Reloaded Assembly Materials Kit Now Available

You can purchase an assembly materials kit for a Raptor hand from 3D Universe by clicking here. This kit includes all of the materials needed to assemble a Raptor hand or a Raptor Reloaded Hand.

A discount is available on these kits for e-NABLE members who are actively involved in the charitable fabrication of these devices. Email for more details.

A portion of every kit sold will go towards supporting and the e-NABLE community!




An Important Note About Assembly

The most common mistake when assembling e-NABLE Hand devices is improper tensioning of the non-flexible cords. When the non-flexible cords are tied correctly, the base of the palm should be inclined about 30-45 degrees compared to the base of the bracer (the part that goes over the arm). This will allow the recipient to activate the device without having to bend their wrist so far downwards as to cause discomfort.

As an example, the below image shows a properly tensioned Phoenix v2 hand. While this is a different design, the Raptor Reloaded hand should be assembled at a similar angle as what is shown here.




Assembly Tutorials – For Kids By



Assembly Instructions:

Detailed assembly instructions can be found on Instructables.

Android device users, check out our augmented reality assembly tutorial app here.


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.

39 thoughts on “The Raptor Reloaded

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  2. madeline fordham Reply

    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

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  5. Alana Reply

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

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  11. Zack Reply

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

    • Jen Owen - e-NABLE Volunteer Reply

      Hello Zack – it is open source and free to print and use and make for someone but not available to create to sell. If you have any other questions or need more details Please email the support team at 🙂

      • Zack

        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.

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  13. Gideon White Reply

    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?

  14. Karen Reply

    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?

    • Jen Owen - e-NABLE Volunteer Reply

      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.”

      • Karen

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

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  16. Crystal Kolarik Reply

    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.


  17. Mecca Reply

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

  18. Brian Hayes Reply

    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!

    • Jen Owen - e-NABLE Volunteer Reply

      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. 🙂

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  22. Jin Xiang Yu Reply

    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!


    • Jen Owen - e-NABLE Volunteer Reply

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

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  26. Julia Reply

    Our pins are too big to fit through some of the holes. What should we do?

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