Hi Luis,

Yes - you can completely hide the axes / walls - the following code shows how to do that:
   NChart chart = chartControl.Charts[0];

    foreach (NChartWall wall in chart.Walls)
    {
      wall.Visible = false;
    }

    foreach (NAxis axis in chart.Axes)
    {
      axis.Visible = false;
    }

Let us know if you have any questions or meet any problems.

Best Regards,
Nevron Support Team