e-NABLE has developed three primary, open source designs of functional hands (and several variations), which anyone can download, 3-D print, and assemble. A Washington prop-maker and a carpenter in South Africa who lost four fingers in an accident pioneered the original hand design for a five-year-old. This chance collaboration inspired what would become the e-NABLE community.
The hand designs generally consist of a gauntlet attached to the arm or wrist, articulated fingers for gripping, and a system of “tendons,” which allows wearers to close or open the fingers by bending or straightening their wrists. For less than $50 in parts and 8-14 hours on your printer, you can lend a hand at www.enablingthefuture.org.