void step_forward()
{
delay(500);
servo1.write(20);
servo2.write(20);
servo3.write(165);
servo4.write(20);
servo5.write(60);
servo6.write(0);
servo7.write(60);
servo8.write(110);
//servo3.write(40);
for(i=60,j=120,k=60,l=110;i<=110,j>=40,k<=110,l>=50;i+=1,j-=1,k+=1,l-=1)
{
servo6.write(50);
delay(8);
servo5.write(i);
servo8.write(l);
}
delay(500);
servo7.write(20);
servo3.write(155);
servo1.write(30);
servo2.write(40);
delay(500);
//servo1.write(100);
for(i=10,j=60,k=20,l=60;i<=10,j>=10,k<=110,l>=0;i+=1,j-=1,k+=1,l-=1)
{
servo5.write(60);
delay(8);
servo6.write(j);
servo7.write(k);
}
delay(500);
servo8.write(110);
servo1.write(20);
servo2.write(20);
delay(500);
}