During the vacation, I optimized multiple components based on the original design of the casing and improved some dimensions to fit the size of our group’s small car. After returning from vacation, I submitted my design proposal to the 3D printing department for printing, and finally successfully obtained the finished shell I designed. Afterwards, due to the poor size of the PCB board, it was directly inserted into the assembly. I used a polishing machine to perform extensive polishing in order to install the casing, which took a lot of time. However, in the end, the casing was successfully installed and an adversarial test was conducted. The experiment was very successful and met my expectations.