Robotic gripper and Arduino. Tutorial about a robotic clamp with Arduino.

The new robotic gripper Andromina V.2.0 is the most advanced gripper that currently exists and has many applications. In this second version, the clamp has been greatly improved, the opening and closing of the clamp can be controlled by an encoder and a limit switch. The main advantage of this clamp is that it is controlled by means of standard radio control servo motors. These can be controlled directly from any Arduino board or any other board, such as Raspberry Pi, Beagleboard, Picaxe etc .... In this post we show the new mechanical design of the 5 grippers Andromina V.2.0. There are 5 different designs of clamp where we have varied the number of fingers that each clamp has and we can choose between 2, 3, 4, 5 or 6 fingers. We can also choose if we want a clamp with one, two or three degrees of freedom.

Photo of the robotic gripper Andromina V.2.0 with six fingers.

In the following picture you can compare the 5 different models of grippers, Andromina V.2.0. In this picture you can see grippers with a single degree of freedom, with a single servo motor RC.

View of the 5 models of robotic grippers Andromina V.2.0.

Robotic grippers compatible with Arduino. They are printed with a 3D printer.

Andromina Gripper 4 V1.1. These new robotic grippers presented in this post are ideal for mounting on any standard robotic arm or a robotic arm manufactured by a "Maker". Its futuristic design allows the manipulation of a variety of objects. The different holes on the grippers allow several positions of assembly.

In this post, you can see these robotic grippers to manipulate large objects. They are manufactured with a 3D printer, Prusa I3. The printer uses ABS plastic. The different 3D parts of grippers are assembled with stainless steel bolts of DIN-912 M-3 Allen bolts.

The main features of these robotic grippers are :

1. The grippers are robust and light.
2. The grippers allow the manipulation of large objects, with an size of 77mm.
3. The grippers allow two degrees of freedom, the opening and closing of jaws, and the rotation of the gripper.
4. The grippers uses two RC standard servo motors. One servo rotates between 0 to 180 degrees and the other servo is a 360 degrees servo, continuous rotation servo.
5. The gripper can be connected directly to all Arduino, Raspberry Pi boards and PICAXE boards or any other board.. The boards don't need shields. We can use the standard pins of Arduino.
6. The micro switch of the gripper designates the closing of the jaws.

This video shows an Andromina gripper 4 v1.1 controlled with a Arduino UNO board. The two servo motors are connected direct to the board, without shield. In this video the gripper manipulates a can of 0,33 kilograms (0,728 lb). The next pictures show the main details of this gripper.

Robotic gripper with two servo motors.