Planning of my first quadcopter

[buyalleasy]

That qestion was quite easy. The project had to be cheap and simple, too.
So my first idea was the tricopter. It is cheaper than the other multicopters, because you only need 3 motors and 3 speed controllers instead of 4, 6 or even 8 each. But I thought, it would have been to complex for my first DIY project, because the motor has to be movable by a servo.

There are many different motors and SimonK 30A ESCeven more opinions about choosing the right motor. As I said before, the quadcopter had to be cheap, that’s why I searched for a no name product, which was – nonetheless – powerful enough and had a good quality.

OK, it had to be a quadcopter and the suppos were the motors of choice. But what about the ESCs? Cheap of course, but I read much about the special requirements for mulitcopters. Let me say it in simple way: “normal” ESCs are not that quick in accepting the signal from the Walkera 4F200LMcontroller board (APM 2.5). That’s why a guy called SimonK programmed a custom firmware for cheap ESCs, which can handle fast changes. Using this firmware imporves stability and responsiveness of the mulitcopter.