1. 3d print
2. magnetic acturator assembling
3. connect to the circuit

int pin1 = 6;
int pin2 = 9;
int d = 500;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(pin1, OUTPUT);
  pinMode(pin2, OUTPUT);
}

void loop() {
 //  put your main code here, to run repeatedly:
  digitalWrite(pin1, HIGH);
  digitalWrite(pin2, LOW);
  delay(d);
  digitalWrite(pin1, LOW);
  digitalWrite(pin2, HIGH);
  delay(d);
}

Although we made every step right, the wire on the actuator was too hard to solder, which made the actuator not function very well. So we borrowed the actuator from Alan’s group.