Building Quadcopters, Drones and Uav's- A explanation and easy build of a basic Quad.

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Picture of Building Quadcopters, Drones and Uav's- A explanation and easy build of a basic Quad.
So you are interested in Quadcopters, Quadrotors, Uavs, Drones and whatever else they call them.
But what are they made up of, and why? Could i build one or are they for more advanced electronic type individuals.
Well never fear. I present to you a basic overview and build of a basic quadcopter in full.
(around $220 plus shipping not including transmitter,receiver or lipo battery charger)
If your more advanced and tech savvy you may choose to design your own setups but for the rest of you i would advise to stick to the components listed if possible to ensure all of it functions well. That said the frame and batteries can be different. I would advise the batteries be a similar size or you will get less flight time. I brush over a lot of the components to give a basic understanding of what they are for. If anything is unclear feel free to ask questions or even hit some forums or google it yourself as that is how i learned all of this.

I will not cover fpv, groundstations or autonomous drones in this as if can easily confuse people so i may do another instructable for them another time perhaps.  

Hopefully you enjoy my first instructable.
If i get a good response i may do another.

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eben89 (author) 9 months ago
Ok thanks for sharing. I just used the outside ones to try organise them better for myself. Sorry i misinterpreted what you were saying.
matheusmbar9 months ago
I have studyed a lot about brushless motors and used them too, I know very well how the work and why it have three wires.
I'm saying that there isn't any difference between the three wires, all of them will be used (alternately by the controller) as positive voltage, ground and sensing, this is how it works. And doen's matter which of them you will switch, you can choose any 2 that it will continue working, with reverse rotation.
eben89 (author) 9 months ago
In the picture you can only see 2 of the three wires. There should be three when you buy your brushless rc motors.
Hope that clears things up.
matheusmbar9 months ago
Hello. Your tutorial is very good, but these names for the 3 wires of the brushless motor don't make any sense.
In this kind of motor isn't the definition of positive and negative wires, neither the "signal" that you writed. The three wires are used by the controller as positive, negative and sensing, always alternating these functions.
Switching 2 wires will invert the motor rotation.
eben89 (author)  matheusmbar9 months ago
Two of the motors require a reverse rotation and the other two require a regular rotation. Switching the two outside wires of the motor reverses its direction. The middle wire always stays the same as it recieves a pwm "signal" from the flight controller to the esc and then to the motor. I just call it the signal wire but you can call it a sensing if you like. It's all is the same thing.
husamwadi9 months ago
Thanks for the instructable, very informative!

Keep it up!
eben89 (author)  husamwadi9 months ago
No problem. Instructables has taught me a lot of stuff so its about time i gave something back.

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