Isabelle Bousquet Quadcopter June 12th, 2018 - 14:00:11
If you have ever wondered what you need to get started in the RC hobby of multirotors this is the place for you. In this article I am going to outline all the basic components that are necessary to get started building your own quadcopter. First you are going to need a transmitter. The transmitter is the radio control that you use to communicate with your unmanned aerial vehicle (UAV). There are various types of transmitter that are categorized by brand frequency and number of channels. For a quadcopter you need at least a 4 channel transmitter but I would suggest getting a 6 channel transmitter that works on the 2.4GHz frequency.
Next I needed to decide what the frame was going to look like. The size of the motors was determined by the size of the frame and the payload. In other words the size of the camera I wanted to use was a key factor to how strong the quad needed to be. What material to use for the frame? Carbon? Aluminum? Fiberglass? We always want to use the best at first but reality soon sets in. I watched the video of another quadcopter made out of wood that flew beautifully. Wood was inexpensive and strong enough to meet my needs and it only cost about $5! There are many ways to build the frame. It would take far too long to describe all the decisions I had to make. We need to get to the flying! In the end I decided that designing my own custom frame was the way to go. I wanted to be really proud of my quad.
Should we be using different bearings for our high-speed rotor blades which are used on the most common drone types like the Quadcopter designs? I believe so as these drones need to be very reliable long range and will have important cargo onboard as part of their important missions whether on the battlefield commercial application or delivering you a very important pizza or Amazon package. This got me thinking that not only is this relevant to todays military aircraft space flight propulsion future jet engines but also relevant for high-speed little motors that spin well over 10000 RPM. If we want these motors to last and if there are multiple motors per flying craft; MAV - Micro Air Vehicle UAS - Unmanned Aerial System or PFC - Personal Flying Craft (Air Taxi) then it makes sense to use such technology.
You may have seen some pretty amazing flying vehicles these days. UAVs (unmanned aerial vehicles) are becoming more and more common. The hobby is also getting more and more easy to get into. But with the great range of models and brands you may wonder what is the best quadcopter to start out with. There are a several variations of the multirotor family. The most common is the quadcopter like the DJI Phantom. A quadcopter uses four motors and propellers to generate the thrust necessary to lift the aircraft. It can be more mechanically simple than a traditional helicopter that requires a tail rotor to counteract the angular torque produced by the main rotor and the main rotor does not require collective pitch and other mechanical complexities. With a quadcopter the pitch is fixed and the flight control is achieved by actively changing the motor RPM (revolutions per second).