![]() ![]() When selecting your brushless motor you should take care of the weight, the size, which kind of propeller you are going to use, so everything matches up with the current consumption. On this diagram of the brushed motor you will see that it is the coil that is rotating instead of the magnets as on the brushless.īrushless motors come in many different varieties, where the size and the current consumption differ. ![]() So the coils are fixed which means wires can go directly to them and therefor there is no need for a brush. On the outer side it contains a number of magnets mounted to a cylinder that is attached to the rotating shaft. Instead the brushless motors have three coils on the inner (center) of the motor, which is fixed to the mounting. Though the brushless motors do not have a brush on the shaft which takes care of switching the power direction in the coils, and this is why they are called brushless. Most of the times the so called Brushless Motors are used to drive the propellers.īrushless motors are a bit similar to normal DC motors in the way that coils and magnets are used to drive the shaft. Brushless motorsĪs I said QuadCopters do have 4 motors with a propeller each. To give you a better understanding of what a QuadCopter contains I will now go thru some of the parts it contains. So before planning my design I searched the internet for good resources for DIY QuadCopter and found the following links to be the best: To plan and build a QuadCopter there is a lot of terms you need to understand. All from the tiny ones that isn’t much larger than a CD ROM and up to QuadCopters with a motor-to-motor length of more than a meter. QuadCopters can be found and built in many different sizes. You can also find them as toys, fx the AR Drone or even universities have been playing with them, developing swarms with them You might have seen one in action before, as they are being commercialized for police and monitoring use. In short terms a QuadCopter is what the name says a ‘copter’-like device with four rotors (quad). There will be coming some more blog posts later on describing how to get the QuadCopter running, programming it, tuning it etc. In this blog post I will try to describe the different steps I have been thru to plan, design and build the prototype of my QuadCopter. So I decided to start reading some more about the materials behind these QuadCopters and how they manage to stabilize in the air. If you don’t know what a QuadCopter is, you should definitely have a look at the video below where some advanced features of cooperating Quadcopters are displayed: The way they fly and the way they control their movements is unbelievable – it almost looks like a bug. I have been watching different videos of QuadCopters recently and I’ve been pretty amused. ![]()
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