How To Build A Simple Quadcopter?
I will to explain about electrical and mechanical theory of quadcopters as the basic engine of a drone, and this is a brief overview of the subject I will be covering in this article.
Parts To Build A Quadcopter
- Battery Selection
- ESC/ Motor Relationship
- Power Distribution
- Signal Distribution
- Balancing Aircraft
Ok, let’s describe one by one, and the collection of images in the end of this paper hopefully can help you better understand.
When it comes to selecting a connector make sure that it’s something that’s easy for you to make and customize and something that is durable and will survive several crashes and the test of time. These are the three major connectors I usually come across.
I’m very partial to the EC3 connector because it’s just easy use to make and it’s rather easy to disconnect and connect . As a rule of thumb, It’s a good idea to have uniform connectors across your entire platform. So you won’t have to make adapters and what not to help you out in the long run.
Choosing Battery For Quadcopter
Lithium-polymer lipo batteries are the preferred battery right now for our C aircraft. so I didn’t highly recommend that one choose and a battery is very crucial in the three top bullets are the ones. I like to emphasize the months is the amount of cells that a battery has for quadcopters 3 and 4 cell seem to be the most appropriate, I myself use a 3-cell because of its maximum power range.
Amilia power is the fuel tanker battery the more male amps the longer your battery can actually perform and give power to your quadcopter. The sea on a battery represents the maximum output it can give the higher the sea the more amps can be drawn at any single time, generally about 30 C is very sufficient. One of the questions, I had when I first started is how do you charge these batteries when you plug them in you’re going to want to charge at 1 C, and that is the equivalent to what your battery actually is if you have a 3-cell battery you’re going to charge it at 11.1 volts at 2.8 A, that is one C.
What Is ESC In Quadcopter?
Like I mentioned my previous article (read: Parts of A Drone with Quadcopter Components List), the ESC controls the amount of voltage going to your motor. That is done by the three wires come out of the top of the esc to the three wires on my motor, just connect them in any algorithm.
If the motor isn’t spend the appropriate direction just switched to the wires it should fix the problem. It’s very important that when the bullet connectors actually connect the ESC to the motor that they are shielded with heat shrink or electrical tape. Because that can cause a shorting to destroy your ESC or your motor and that could usually be kind of costly.
Power Distribution Quadcopter Components
This is a Power Distribution while showing you the flow of electrons from the battery to all the components of your quadcopter.
At the bottom one represents the battery being attached to the wiring harness and giving 11.1 volts to the ESC in the your UBEC. Of course the 11.1 volts comes from the battery itself because the battery I depicted is a 3-cell battery. You’re going to want to connect all the positive and the negative, wire sure media sees together and that’s going to create your wiring harness. This is very important because this is going to locate an aircraft and this is where your battery is actually going to enter the circuit.
On the very right side I depicted the you back this can either be internal to your ESC, or it can be an external item. That you back is a battery limiting circuit this is going to take the voltage from your battery and turn it down to 5V, and this is what the rest of the components an aircraft are going to run off. Decks are not optional connecting your battery straight to flight control board or other auxiliary equipment, probably will overload it and destroyed. The two represents 5 volts from the you back to the flight control board. Once the 5 volts sit in the flight control board through the various other ports on it the RX and the auxiliary equipment such as a GPS will be powered in turn.
Signal Distribution Model of The Quadcopter
The next item, I will cover is the signal distribution model.
This is a signal distribution model this is what’s going to happen when you get input from your transmitter located on the ground to the aircraft. The one of course represents the antenna and this is going to be your net for electromagnetic waves and then it’s going to be funneled into your receiver. Quadcopters are four channel aircrafts, they have roll, yaw pitch and throttle and your rx knows this. So it’s going to translate it through four wires to flight control board. Three is the flight control board once it receives the four different signal from your receiver. It’s going to then in turn signal the ESC on whatever motor that you wish to rip up or slow down depending on a maneuver that you commanded. Once the signal is given to the ESC, the ESC is now going to regulate the voltage to the motors to help maneuver the aircraft.
How To Calculate Aircraft Weight And Balance
This is the actual attaching of the components to the airframe and how they’re actually going to affect your center of gravity and movement ability.
You’re going to keep all the components centered on your aircraft, so on an H quad, you’re going to keep them on the center high beam, and that’s going to be the center of that model. Now the x and the plus the the joint of the two parts is going to be your center gravity keep everything, balanced in the center and that will allow you to move in all directions very freely and without really too much trouble.
The last thing I’m cover is the actual mounting of objects, keep them toward the center keep them really close to the airframe. Don’t have any protruding sort of objects it’s going to reduce your aerodynamics and it’s also going to produce drag of course. So keep it really nice and compact. If something is protruding when it gets into a wreck it’s probably going to destroy it, but of course antennas they can protrude both vertically and horizontally. I really appreciate you reading, if you have any questions or corrections, please leave in the comments below. Thank you.