During the month of March, I continued to finish the shell of micromouse. After discussing with our team members, we decided to design a part that we can fix the shell on the micromouse with screws. Except this part, I also designed a spacer plate which can separate the sensors. In the end of the March, I finish the project of our shell, and my team members achieved good progress of white-line sensor and the circuit of PCB IR sensor. They also started to color the shell of micromouse. I look forward to our trip at Gregynog hall, I think we can get better achievement in the next month.