void RaiseBeforeStep(StepperMotor axis)
        {
            var handler = BeforeStep;

            if (handler != null)
            {
                handler(axis);
            }
        }
        /// <summary>
        ///   Raises the <see cref="MotorStopped" /> event.
        /// </summary>
        /// <param name="axis">The axis.</param>
        void OnMotorStopped(StepperMotor axis)
        {
            var handler = MotorStopped;

            if (handler != null)
            {
                handler(axis);
            }
        }