Flexibone Prosthetic Hand 2019

thingiverse

This project has been Open Source Hardware certified: OSHW FR000008. A joint University of Bath and Grenoble INP collaboration designed an electronically assisted prosthetic hand for a person who had lost their fingers but retained part of their palm. Team members from Gre-Nable and the e-Nable community contributed to the project, which has been OSHW certified. To learn more about the project and its key developments for the community, read this article: https://www.gre-nable.fr/en/electrically-assisted-flexibone-hand/. The prosthetic is made of two materials: ABS/PLA for the hard shell of the hand and gauntlet, and Ninjaflex for the internal bone of the fingers and thumb. All CAD models were developed on open source software On-Shape and are accessible here: https://cad.onshape.com/documents/15971390cd96deba2412303e/w/515c26e2e8a49867cd2c31d1/e/5e2ac7d52c7ee5494f4c064c. The fingers contract using fishing wire attached to servo motors, controlled by a joystick inside the palm. A pressure sensor was implemented in the index finger tip, controlling small vibration motors in the gauntlet based on grip force. For more information on development, visit this Google Drive: https://drive.google.com/drive/u/0/folders/1rtLe67y_BC7LUJKhqJfXKG1d2ZKKdgPI. Appendix W links to additional parts used for the prototype. This project is available for recreation and improvement to benefit the wider e-Nable community.