Downforce is an important part of modern motorsports, allowing cars to stick to the track at high speed.However, for a small remote control car, adding a fan to suck a little force can achieve a greater effect, as shown in the figure above This by [DD ElectroTech].
The start of the construction was a simple dual-motor sliding remote control car with a fan for suction. Controlled by a smart phone application, a cheap Arduino board with HC-05 Bluetooth module runs the program. However, when all this is assembled, the car is too heavy to climb walls or stick to the ceiling.
Therefore, a weight loss plan is orderly. The wheels were replaced with lighter 3D printed parts. The electronic equipment has also undergone a major redesign, condensing multiple individual modules into a custom PCB. After some other adjustments, the new light car can easily drive on the ceiling and even climb walls, albeit with some difficulty.
This is an interesting little build that shows well how easy it is to create cool projects using modern electronics and 3D printed parts. We have seen other printed fan cars before, but did you know that this concept was tested for the first time in a real-world racing game? Video after the break.