Then connect the negative pin of the battery to the negative terminals of the motors.Connect the negative wires of all the four motors together.Connect the positive wires of all the four motors together.Now the motors and the propellers are ready.įor the first flight, we need a 3.7 V 150 mAh battery also. Then stick a double-sided sticker to the middle of the frame to place the battery and the circuitry.Stick the motor wires on the frame using small pieces of insulating tape as shown in the pictures.Now we have the frame, motors, and the propellers. The red or white wire is the positive one and the black one is negative. The motor is rated at 3.7 V and it has high rpm. You can buy this type of tiny motors for mini-drone from a local shop or from online platforms.

Now we need four motors and four propellers. Do some final finishing works like sanding and filing the edges.Make four holes for the motors as per the dimension of the motors.Draw the shape of the frame as per dimension.Cut the piece of plastic without breaking.To make a frame, I collected many plastic pieces from trash and selected the one the lowest weight. The weight of the frame should be as low as possible. Finally decided to make a four-rotor drone.Ī well designed and balanced frame should be symmetric about its center of gravity and its center of gravity(CG), the center of mass (CM) and the center of symmetry should coincide. Studied about three rotor drones four-rotor drones, and other multi-rotor drones. Studied more about the frame and the physics of a good frame. I referred many websites regarding the parts of a drone and the importance of every part. I mounted the motors, connected the propellers and connected the battery to the motors but none of the frames were stable. I have tried a number of frames as you can see in the pictures, but no one worked well. Everything including motors, battery, and circuitry are mounted on the frame. STEP 1: We Need a Frame….!Īn important mechanical part of any drone is its frame. I can explain you the entire build process in fewer steps. Everything started when I decided to shop a mini RC drone and one of my friends told me to build one instead of buying one. In this project, I am gonna share you the story how I managed to build a simple and cheap mini-drone my own.

Diy mini drone with camera