This is a simple pen holder mod designed to be attached by screw or ca glue next to the thumb in an E-nable Phoenix hand or Unlimbited Arm. It is angled and positioned so the thumb and index finger support it like a hand would (see photos for placement). It's based on the Book Cover Pen Holder by AtomKemp.
We made this as a request from Mr. Wichit a man in Thailand who lost his arm below the elbow and for many years would strap a pen to his stump to write. Now as part of the Thai Reach Sirindhorn Hospital Sai Jai Thai project to help Veterans with limb disabilities we are making him an Unlimbited Arm with the mod attached.
This very much a work in progress and we are planing to improve this so it has more functionality and more adjustable. This Wichit edition fits most pen sizes and works better on adult sized hands.
A tougher PLA or ABS recommended for long term use.