This gauge has been specifically designed to assist in setting the DJI Inspire 1 arms to the same plane, thus ensuring correct flight characteristics. Currently the gauge does not identify the correct DJI recommended prop tip height or plane due to that information not being available. However, this gauge does ensure you can adjust the arms such that the prop tips (13 inch or 14 inch) are both level and on the same plane, thus ensuring minimal drift or rotation during flight. The download files are available in 3mm, 4mm and 5mm thicknesses. All versions reform the exact same function with the thicker versions simply being more stable and looking more premium, plus with longer print time. Please note the print time at good quality is round 10hrs or more. If you wish to order directly rather than print you may do so at https://www.facebook.com/l.php?u=https%3A%2F%2Fwww.shapeways.com%2Fproduct%2F6265426WE%2Fdji-inspire-1-alignment-gauge&h=TAQGLsbNF