#include <AccelStepper.h>
#define step_x 2
#define step_y 3
#define step_z 4
#define dir_x 5
#define dir_y 6
#define dir_z 7
// AccelStepper stepper_x(1, step_x, dir_x);
AccelStepper stepper_y(1, step_y, dir_y);
// AccelStepper stepper_z(1, step_z, dir_z);
void setup()
{
stepper_y.setMaxSpeed(1000);
stepper_y.setSpeed(100);
}
void loop()
{
stepper_y.runSpeed();
}