Raptor, designed by the e-Nable team, demonstrates ease of printing and assembly, and uses 3D-printed snap pins for joint connection. The modular tensioning system feeds from the wrist gauntlet through the back of the hand, to then control flexion and extension of the fingers. It attaches with Velcro to the upper wrist and contains leather palm enclosures. It is licensed under the Creative Commons-Attribution-Share Alike license. A list of parts and suppliers are listed on the website.
Raptor Reloaded is an updated, re-factored version of the Raptor hand. It is modeled in Fusion 360, which is a free CAD tool that is compatible with several standard solid-body modeling formats. Users can download source files and make changes to fit a patient’s specific needs. The addition of removable knuckle pins allows for easy part alterations.
Developed by Jorge Zuniga and his research group at Creighton University, Cyborg Beast is one of the most popular designs. It features textured finger grips and uses Chicago screw joints. An integrated tensioning system starts at the gauntlet and feeds through protected cable routing in the palm.
Talon Hand 2.X
The Talon Hand 2.X targets users with greater range of motion. Though one of the hardest to assemble, it’s the most robust and provides the highest grip strength. A leather shoe-and-cuff gauntlet should be used for maximum for comfort.
The Odysseus Hand
The Odysseus Hand uses three fingers to increase the grasp strength with lower effort from the wearer. Its assembly is similar to the Talon Hand, featuring the same tensioning system and leather gauntlet.
Flexy Hand and Flexy Hand 2
Designed by Steve Wood, Flexy Hands use preloaded hinges to eliminate the need for elastic cords that must be manually pulled to return the hand to the extended position. Users can simply release their flexure grip to open the hand.
Owen Replacement Finger
Useful for finger amputees, Owen Replacement Finger files can be accessed on the Thingiverse Customizer Web-App for easy custom-fitting of functioning replacement fingers.
RIT Arm targets mid-forearm amputees or patients with wrist complications. It enables people to actuate e-Nable hands with controlled motion at the elbow or activation of a Bowden cable connected to a shoulder harness.