Phoenix v2 Hand
To learn about what each of the above icons represents, please refer to the Device Ratings Guide.
Designers: Jason Bryant, John Diamond, Scott Darrow, and Andreas Bastian
Description:
This is a wrist-powered device. To use this design, the user must have a functional wrist and enough palm to push against the device to force the fingers closed when wrist is bent. For more information, see the Which Design page.
This is a remix of the original e-NABLE Phoenix hand by Jason Bryant with replacement components by John Diamond, Scott Darrow and Andreas Bastian. The changes from the original are as follows:
- Gauntlet – Original fully 3D printed version replaced with a thermoformed equivalent (lighter, stronger, uses less filament, quicker to print and can be adjusted to better fit the forearm)
- Gripper box components – Whippletree doesn’t require tying to the swivel pin using string. The printing support from the swivel pin should be cut/snipped/filed off before assembly. The thumb tensioner pin is shorter so it doesn’t need to protrude from the front of the gripper box.
- Thermoformable palm mesh – An easier to assemble alternative to using Velcro in the palm. Can be thermoformed and adjusted to fit the recipient. Two alternative versions, thin/thick, are provided.
- Palm with supports – The support structure uses less filament than the original and can be easily, safely and cleanly removed by hand usually without tools.
- Demo bar – Used instead of the palm mesh if the hand is to be used for demonstration purposes. It allows a person with a full set of fingers and thumb to wear the hand and operate it.
- Wrist pin – This pin has been shortened to allow it to be used with the thermoformed gauntlet.
Files and Resources
STL Files: Link
Source CAD Files: Not available
Instructions: Link
Assembly Materials Kit: Link
Video Tutorials: Video 1, Video 2, Video 3
e-NABLE Device Color Customizer: Link
Hey everyone, my Name is Andrew Schultz and I am from the E-Nable Cincinnati Manufacturers Chapter. I have had a couple issues in the past and with my most recent build of the Phoenix V2.
Issue #1: When the recipient of my most recent Phoenix V2 hand used her new hand for a consistent amount of time, she found that the wrist pins were popping off.
Resoution: I added small locking tabs that pushed between the clipping features of the pins after they go through the wrist pin cap. This makes it so they can no longer deflect on are quite litterally locked into the wrist pin caps. So far, this has been a 100% successful modification.
Issue #2: The little girl is using a socket and I had to modify the palm to accept the silicone socket provided by RJ Rosenberg here in Cincinnati. thumb would help provide opposite gripping from the radial side, but things would slip a bit on the ulnar side grip.
Resolution: I removed the mesh from the underside of the palm and modified the design to include a positive palm pad.
Issue #3: When printing my new palm (which was heavily modified), I had trouble with support material trying to print inside the ligament tunnels in the palm. It was nearly impossible to clear out those tunnels.
Resolution: I decided to redesign the tunnels using a teardrop cross section with a 60° angle at the top of the cross section. This worked perfectly.