Robotic Tentacle Arm
thingiverse
This 2-DOF robotic arm uses 2 servos and an Arduino, with fishing lines as tendons and springs at each joint for even curvature. It's a prototype for a larger project; the video demonstrates its functionality (http://www.youtube.com/watch?v=Yk7Muaigd4k). To build it, print tentacleBase.stl, tentacleJoint1.stl, two tentacleJoint2.stl, and three tentacleLink.stl. Assemble parts by inserting filament through joints and links, ensuring proper alignment for tendon holes and spring hooks. Attach servos to the base, and tie fishing lines as tendons, adjusting their length for smooth movement. Secure springs or elastics for support. Finally, connect the arm to a microcontroller and enjoy its motions. NX6 part files are available upon request.
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