is my stepper too weak?

Other Hardware Motors, Mechanics, Power and CNC
5

I measure the current limit with a multimeter between the trim pot and gnd, i've set it to 0.85v, which by the formula of (Current Limit = VREF × 2) gets me to 1.7A

At the moment the program is just for testing the motor, has it constantly spinning.

 const int stepPin = 3;
 const int dirPin = 4;
 
 void setup() {
 // set the two pins as outputs
  pinMode(stepPin,OUTPUT);
  pinMode(dirPin,OUTPUT);
}

void loop() {
  digitalWrite(stepPin,HIGH);
  delayMicroseconds(800);
  digitalWrite(stepPin,LOW);
  delayMicroseconds(800);
}