How to control the velocity of a servo motor using a potentiometer ?

Other Hardware Motors, Mechanics, Power and CNC
1

I'm running a sketch for a ClearPath SDSK servo motor turning forward and backwards. I can change the velocity, forward/backwards step manually, but I would like to use a potentiometer to do that on the fly.
The purpose for that is a ventilator pump I'm building. I found some sketches on "using potentiometer" but I'm having problems integrating it into my loop routine. Any help is greatly appreciate.
Thanks

here is the link to the sketch:

2

If you are using a delay, as in the sweep example, to control the servo movement speed, then maybe set the delay as a variable that is changed by the pot

3

How are you changing speed manually? What is minimum and maximum speed?

4

OP's code:

/*
  SingleAxisDemo
  Runs a Teknic ClearPath SDSK or SDHP motor, back and forth
 
 
 This example code is in the public domain.
 */

//Import Required libraries
#include <ClearPathMotorSD.h>
#include <ClearPathStepGen.h>

// initialize a ClearPathMotorSD Motor
ClearPathMotorSD X;

//initialize the controller and pass the reference to the motor we are controlling
ClearPathStepGen machine(&X);

// the setup routine runs once when you press reset:
void setup()
{  
  //Begin Serial Communication // NOTE: If communication lags, consider increasing baud rate
  Serial.begin(9600);
  
//X.attach(9);                //attach motor so Step/B is connected to pin 9
//X.attach(8,9);              //Direction/A is pin 8, Step/B is pin 9
//X.attach(8,9,6);            //Direction/A is pin 8, Step/B is pin 9, Enable is pin 6
X.attach(8,9,6,4);          //Direction/A is pin 8, Step/B is pin 9, Enable is pin 6, HLFB is pin 4

// Set max Velocity.  Parameter can be between 2 and 100,000 steps/sec
  X.setMaxVel(100000);
  
// Set max Acceleration.  Parameter can be between 4000 and 2,000,000 steps/sec/sec
  X.setMaxAccel(2000000);
  
// Enable motor, reset the motor position to 0
X.enable();

delay(100);

// Set up the ISR to constantly update motor position.  All motor(s) must be attached, and enabled before this function is called.
machine.Start();

 
}

// the loop routine runs over and over again forever:
void loop()
{  
 // Move the motor forward 10,000 steps
   X.move(10000);
   Serial.println("Move Start");
   
// wait until the command is finished and The motor's HLFB asserts
   while(!X.commandDone()||!X.readHLFB()) //just use command done if not using motor feedback
   { }
   Serial.println("Move Done");
   delay(1000);
  
// Move the motor backwards 10,000 steps
   X.move(-10000);
   Serial.println("Negative Move Begins");
   
// wait until the command is finished and The motor's HLFB asserts  
   while(!X.commandDone()||!X.readHLFB()) //just use command done if not using motor feedback
   { }
   Serial.println("Move Done");
   delay(1000);
   
   
}
5

To change the speed manually, I change the velocity in the sketch. same for forwards and backwards move.
The range for the max Velocity is between 500-25000 steps/sec. and and 500-9000 steps/sec for forward and backwards move.