Sparky, thanks for congratulations! Mpizpilot, I used the main ESM electric retrakta. There the same didn't do without problems. On the first landing, after a sharp turn one of drive axes broke. As in the retraktakt the inch carving is used, I had to make both details of an axis and a shaft, anew, with a metric carving. The main problem in axis thickness, it is equal 6 mm, after drilling of an opening, there are very thin walls of a detail and it breaks after side loading. You can look in pictures, the axis is allocated in red color. I made a detail with a diameter of 7 mm., I hope that it will well work. I ask to excuse for my English if something isn't clear, ask again!