This is my rebuild of the original Glyder600 with the Gimbal center post removed and converted into a Brushless Gimbal. I build a battery box that can slide to be able to adjust the balance of the gimbal and the camera. This allows for different size cameras or if I want to sue two batteries. The different size motors is to try and achieve the NASA findings of best thrust ration for top and bottom coaxial props where top props should be 93-95% of the force from the bottom props. I used softer bottom porps to help absorb any wash fluctuation or gusts from the top props.