Printed Things

Robotic Finger with Servo
You need a standard SG90 Servo. Press it in and set it´s poisition to 0°, than put on the Servo arm so the string is the shortest.
Knot the string to the servo arm and fix the string to the fingertip, i used an 2mm Screw.

Now you can use an arduino to move the servo from 0° (opened finger) to 180° (closed finger). Use the Servo Library for this purpose.
Robotic Finger[shared_files file_id=297]