Five crafty ideas for choosing the Right Motor to your drone
Do you want to build a multicopter or upgrade your existing motor? Nothing else will matter more than the right motor. If your motor section is not right, your aircraft will not perform well.
And again, it is not just a matter of size of the engine. If you are a new player, follow our guide and get familiar with the basic knowledge about electric motors.
Distinguish brush motor and brushless motor
Brush motor: brush motors are among the simplest types of motors. Without DC supply or battery required for operation, a brush motor consists of a rotor, a commutator, brushes, an axle and a magnet.
Brushless motor: It is a synchronous motor that is powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor.
Voltage Constant (KV)
KV refers to the RPM constant of a motor. It is the number of revolutions per minute that the motor will turn when 1V (one voltage) is applied with not load attached to the motor.
What does the KV tell us? Well, it is related to the power coming out from a motor, or more usefully the torque level of a motor. KV allows us to get a handle on the torque we can expect from a particular motor.
What's more, a low KV motor has more winds of thinner wire - it will carry more volts at fewer amps, produce higher torque and swing a bigger prop.
On the contrary, high KV motor has fewer winds of thicker wire which will carry more amps at fewer volts and spin a smaller prop at high revs.
Power is current multiplied by voltage. Generally speaking, the higher the watt rating of the motor, the higher the power of the motor itself.
It is significant to ensure that motors can produce about more than 50 percent thrust than the total weight of your aircraft. This is to assure that your aircraft will have enough extra trust to control your aircraft.
Make sure that your ESCs can handle the motors
It is important to measure that the current draw of the motors to make sure that the ESCs can support the motor.
If your motors have a current draw rate of 10 amps, it is important to make sure that the ESCs have a current rating at least more than 30 percent to allow for some spaces in the event of unforeseen circumstances.
Ensure that the motors can handle the voltages of the battery.
With the right motors, you will be able to experience a stable flight. Hope that this chapter will help your a lot when choosing motors!
|You may also want to read:|
|Repair for Beginners: 6 tips to replace drone motor quickly|
|The Quadcopter FAQs - blades, motor, transmitter|
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