Auto focus for Nova system

In order to achieve the best cutting result by wood laser cutting machine, we will make the laser beam focus when it contact the material on laser cutter engraver, and the smaller laser beam, the better performance. Auto focus function can move up and down the working table to make sure the most proper distance between the material and the focal lens. By using the auto focus function of acrylic laser cutter, users can focus quickly and accurately before cutting and engraving which saves the time of cutting and engraving and brings the better cutting engraving result.