Acrylic sheet is cut into 10*2 dimensions. We have taken acrylic sheet of 4mm thickness. The tapping part is nylon rod which is of 8mm diameter.The tapping is done by servo motor after integrating the acrylic link, nylon rod with the servo motor.

The excess part of the bolt is cut and filed. The nylon rod is bent according to the requirement. Proper base is made for placing of servo motor.

#include <Servo.h>

Servo myservo1;

void setup()

{

myservo1.attach(9);

myservo1.write(0);

delay(500)

myservo1.write(10);

delay(500);

myservo1.write(0);

delay(500);

}