water gun tank

ESP8266-12F, jet water pump, LM298N and the remaining PCB board from the previous project were used to make a water gun tank. I originally wanted to make a water tank tank, but after all, it was for children to play with. Taking into account safety factors, I finally decided to make a water tank tank. I wanted to use what I had on hand. There are several existing water pumps that pressurize water to achieve the effect of water injection. However, when building the model, I found that the effect was not achieved. Later, I found this pump online and bought it for dozens of dollars. At present, the control circuit part of the whole vehicle has been completed, so there is no problem. However, the driving motor speed is not enough (we will replace the motor with a higher speed later). After all, it is for children to play at a low speed, so children can get started easily. The program of the car is modified based on the explosion. In the workshop, the AP mode of the module is used to send out WIFI and the mobile phone is connected to WIFI, and the director's APP is used to control it. Not long after I signed up, I bought a Xiaoluban 3D printer in Xianyu, and I temporarily learned FUSION360 (this software is easy to use but requires a high computer graphics card of 4G or above) to draw the driving wheel, tensioning wheel, driving wheel connecting shaft, Water bottle holder and print. In short, making this car costs money and time, but it is a lot of fun. The following are photos of the production process![1.jpg]()

hu draw a picture![Slice.jpg]()Use CURA to slice and finally print it with a printer