DIY Robot Gripper: Build an Arduino-Driven Plastic Hand

Components and supplies

8mm plastic sheet

4mm plastic sheet

Servos (Tower Pro MG996R)

10K potentiometer

DIY Robot Gripper: Build an Arduino-Driven Plastic Hand

Arduino UNO

bolts and nuts

Necessary tools and machines

CNC machine

About this project

This project is about DYI making of robot griper which is widely needed in robotics projects.

It is made from clear solid plastic and operated by hobbyist servo and Arduino.

Code

Servo knob

Servo knobC/C++

servo knob sketch from arduino IDE examples

/* 
 Controlling a servo position using a potentiometer (variable resistor) 
 by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> 

 modified on 8 Nov 2013
 by Scott Fitzgerald
 http://arduino.cc/en/Tutorial/Knob
*/

#include <Servo.h>

Servo myservo;  // create servo object to control a servo

int potpin = 0;  // analog pin used to connect the potentiometer
int val;    // variable to read the value from the analog pin

void setup()
{
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() 
{ 
  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023) 
  val = map(val, 0, 1023, 0, 180);     // scale it to use it with the servo (value between 0 and 180) 
  myservo.write(val);                  // sets the servo position according to the scaled value 
  delay(15);                           // waits for the servo to get there 
}

Custom parts and enclosures

8mm.DXF4mm.DXF

Schematics

ordinary servo knob configuration DIY Robot Gripper: Build an Arduino-Driven Plastic Hand

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Manufacturing process

3D printing

Automation Control System

Industrial Technology