- The grippers are robust and light.
- The grippers allow the manipulation of large objects, with an size of 77mm.
- The grippers allow two degrees of freedom, the opening and closing of jaws, and the rotation of the gripper.
- 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.
- 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.
- The micro switch of the gripper designates the closing of the jaws.
|Robotic gripper with two servo motors.|
|Robotic gripper with 4 jaws.|
|Top view of the robotic gripper.|
|Dimensions of robotics gripper of 4 jaws.|
|Limit switch of the gripper.|
The next picture shows the connection scheme of the two servo with Arduino UNO. We do not need a Arduino shield to connect this two servos of the robotic gripper. It is good idea put a capacitor of 6,3 volts for maintain stable the current of pin with +5v.
There are two designs in this moment, one with four jaws (Andromina gripper 4 v1.1) and one with two jaws (Androimna 2 v1.1). The above pictures showing the gripper with four jaws and next pictures showing the gripper with two jaws. In the future I’m going to design a gripper with six jaws (Androimna 6 v1.1) and maybe another three and five jaws.
|Andromina gripper 2 v1.1 with 2 jaws.|
|Assembly configuration nº1.|
|Assembly configuration nº2|
|Dimensions of robotics gripper of 2 jaws.|
|Prusa I3 printer prints 3D parts of grippers.|
The original link: http://androminarobot-english.blogspot.hk/2014/11/robotic-gripper-compatible-with-arduino.html