If you’re a beginner and want to fly a small and durable drone as a hobby, then this instructable is for you! Now, you can build your DIY mini quadcopter from scratch, and it won’t drill a hole in your pocket. You don’t need to buy expensive drones anymore, as this drone won’t cost you more than $20. You can enjoy flying a mini-drone that weighs less than 100 grams. So, let’s see what we need to build this drone.
4. Li-polymer battery: A 3.7V battery with a rating of 300-500mAh and 25C would be enough to give a flight of 10-15 minutes.
6. 2.4GHz Transmitter-Receiver pair: I have used a HY-JJH36 board; you can find plenty of such flight controllers online. If you don’t have any usable parts, you can get flight controller board and the remote controller (radio transmitter) for controlling the drone. The flight controller lets you control the drone in many different ways, and we will introduce you to how to do that in part 2, using Arduino as the flight controller.
Take out the miniature motors and mount them in the jackets. Additionally, take four propellers and mount one on each motor. Make sure the propellers are firmly grooved to the motor rotor to avoid any mishaps at a later stage.
Take a piece of thermocol material and cut it down in a cube of 5cm x 5cm x 5cm.
Take two ballpoint pens and take out the ink tubes from inside them. Now, pass it through the thermocol cube in such a way that the ink tube passes exactly through the middle point of the square.
Connect motors on both ends of the two ink tubes and tighten the screws. Use hot glue/tape to hold the ink tubes in place.
Place the battery on the top of the thermocol cube and place the RX board on it. Fasten the assembly using tape/hot glue. Here we go! Your drone is ready to take off. Turn on the power button on the top of the Flight Controller and let the fun begin.
Remember that the spinning propellers of the drone are extremely dangerous and may cause severe injury. Always fly the drone in an open place and avoid flying close to humans.
This kind of small, DIY drones are really hard to control, so please be extra careful when flying the drone. In the next article we are going to use more steady frame for the drone and use Arduino as the flight controller.