Servo Robot Gripper

This is a simple gripper model. It's powered by a 9g servo motor, and it can hold a soda can sized object.

This model offers two options, the first is if you want to hold lighter items, you can just print the flat arm model. Otherwise print out both of the arm, and the underarm files. But with the second option you need some screws to hold the two pieces together.

Just print out the needed parts, and do not to forget to mirror extra arms in slicer software. Than assembly them as show in the pictures. I used MG90S servo for this project, but the design supports the SG90 as well. Some rigid wires (ex. paper clip) to hold the arms, and the servo's arm together. For arms M3 bolt and hexnut is designed. After adjusting a fine gap between arms and base plate, secure the bolt against the nut with a drop of nail polish.