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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rugarte12 days ago


Very good instructable. I would like to know how is the approx total weight of the quad with a camera installed?


DavidH62 months ago

I have many questions, disagreements, suggestions, R/C racer for 20 yrs, looking at drones. Email me pls,

rrowsome5 months ago

"Too high an ESC and you can cook your motor". This is actually not true. You can use an ESC rated for 60 amps on a motor rated for 20 max amps. You just need to make sure that you don't exceed the max voltage and current ratings for both ESCs and motors. Good tutorial though, keep it up!

stevenarango6 months ago

well this instructable is great thank you

i am making two drones. one from scratch and the other from a Kit.

your instructable really help. cheers mate.

eben89 (author) 1 year 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.
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) 1 year 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.
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)  matheusmbar1 year 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.
husamwadi1 year ago
Thanks for the instructable, very informative!

Keep it up!
eben89 (author)  husamwadi1 year ago
No problem. Instructables has taught me a lot of stuff so its about time i gave something back.