PTD Actuator, Arduino driven
grabcad
I've identified some common issues with eNABLE prosthetic hands and decided to create solutions. The main problems are scaling and mechanical limitations, which are tackled in a new design. A non-scaling enclosure interacts with any 3D printed hand, eliminating hardware size variations. Additionally, a pulley system allows for independent finger movement, enabling better grasping of various objects. The entire design is 3D printable without support and weighs just 178g, with the heaviest components being the battery and linear servo. Movement is actuated via an Arduino Micro microcontroller, Myoware sensor, and multiplying pulley system. An Arduino sketch calibrates the sensor for optimal performance. Assembly requires basic soldering skills. The design is compatible with any PTD that uses tendons for actuation. Materials, print settings, and assembly instructions are provided in attached files. This concept could greatly benefit the eNABLE community.
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