I connected my stepper to an arduino and wrote a small program which gives one pulse every 50µs:
Code:
int pulPin = 10;
int dirPin = 11;
int enblPin = 12;
int ledPin = 13;
int loops = 0;
void setup() {
// put your setup code here, to run once:
pinMode(pulPin, OUTPUT);
pinMode(dirPin, OUTPUT);
pinMode(enblPin, OUTPUT);
pinMode(ledPin, OUTPUT);
digitalWrite(pulPin, LOW);
digitalWrite(ledPin, LOW);
digitalWrite(enblPin, LOW);
digitalWrite(dirPin, LOW);
Serial.begin(9600);
Serial.println("init");
digitalWrite(enblPin, HIGH);
delay(100);
digitalWrite(enblPin, LOW);
}
void loop() {
// put your main code here, to run repeatedly:
int steps=2000;
digitalWrite(dirPin, LOW);
Serial.println("steps: 2000");
for (int i=1; i <= steps; i++)
{
digitalWrite(pulPin, HIGH);
digitalWrite(ledPin, HIGH);
digitalWrite(pulPin, LOW);
digitalWrite(ledPin, LOW);
delayMicroseconds(50);
}
delay(500);
digitalWrite(dirPin, HIGH);
Serial.println("steps: 2000");
for (int i=1; i <= steps; i++)
{
digitalWrite(pulPin, HIGH);
digitalWrite(ledPin, HIGH);
digitalWrite(pulPin, LOW);
digitalWrite(ledPin, LOW);
delayMicroseconds(50);
}
delay(500);
delay(1000);
}
this runs perfectly fine with my stepper and driver (10 microsteps)
this should be a frequency of 20khz
and roughly10 revs/s or 600 revolutions per minute. (assuming the pulse width is 0)
this would give me (5mm/U leadscrew 3000mm/min)
this is way more than I need but I am happy having the speed.
So why can't I get this to work in PNCconf. it took me 5 minutes to code this for arduino but this stepper tuning timing is driving me insane.
I calculated the stepper scale with the wizard. 10 microsteps 5mm leadscrew 200 full steps
min dist is 0.0025mm
steps per mm is 400
but I suspect the stepperscale calculated by the wizard is wrong: 4 000 000
could that be the case?
I cant say that I understand this. I tested the max jitter to be 35 000. So I set it to 100 000 to be on the safe site.