Making the two shaft and gear
during chosing of shaft I found out that the shaft should be strong and not too long. Just ok not too big not too lond. For my coaxial type I had to find two shafts one will be rotating inside the other. I built coaxial type because I have only one brushless motor....yes coaxial can fly even without tail motor, tail motor is there onl for direction. I got my inner shaft from a bycycle, it is just the spoke cut and shaped very well to a desirable size. My outer shaft should be hollow, this led me to find a radio pole, the last hollow pole just fit the spoke very well to allow free rotation. Now I had two copatible gear wheels they were fit at the bottom of these two shafts, and then glued. Now ready. The inner shaft with wheel is then put into the other hollow shaft. Good job!. Just ask me anyhing I will happily answer you.

What you can see above is my motor fit. It is just a plastic tube open at both ends, very easy to mount the helicopter motor. Mounting of motor has been commonly done with screws, where you will have to make holes on the main body to match exertly the holes on the motor. This is then completed by fastening the screws through the main body and the motor. But making the holes match becaomes a problem, I tried, tried before I made it. But now with my system you will only need a plastic tube that is open at both ends and fit your motor very well. Your motor will have to be forced into the tube with a little effort. The motor is glued or epoxised to the main body and the motor is fit into the tube. You will get to understand it more in due cost. Feel free to ask me any question I will gladly answer them.