Mijn eerste 3D printer, een Prusa I3

kakcco.jpg

int stepPin = 11;
int dirPin = 12;
int ledPin = 13; // on board LED

int cnt = 0;

void setup()
{
  pinMode(stepPin, OUTPUT);
  pinMode(dirPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);     
  Serial.begin(9600);
}

void loop()
{  
  Serial.println(cnt);

  digitalWrite(dirPin, HIGH);     
  delay(150);
  digitalWrite(dirPin, LOW);     // Short blink
  delay(1000);
  
  digitalWrite(dirPin, HIGH);     // Set the direction.
  delay(1000);

  if(cnt == 0)
  {   
    moveSteppermotor(400, 2048);  // 2 revolutions fast forward

    digitalWrite(dirPin, LOW);    // Change direction.
    delay(1000);

    moveSteppermotor(20, 65535);  // 1/10 revolution slow backwards
  }
  
  cnt = cnt + 1;
}

  
void moveSteppermotor(int steps,  unsigned int spd)
{
  int i;
  
  for (i = 0; i<steps; i++)       
  {
    digitalWrite(stepPin, HIGH); // "Rising Edge" so the polulu knows to when to step
    digitalWrite(ledPin, HIGH);
    delayMicroseconds(spd);
    digitalWrite(stepPin, LOW); 
    digitalWrite(ledPin, LOW); 
    delayMicroseconds(spd);     // min 500 Any faster the motor stalls.
  }
}