I remodeled the case because the measurements were incorrect. I moved the U1 on Kicad a little outside of the pcb because since the case’s thickness is 10mm on each side, the U1 would be too far inside the case. Although I moved it, it’s still not quite right so I will have to make the walls less thick. I had some trouble building the walls and the holes because I couldn’t figure out the margins but I got it to work my manually measuring the distances. I also placed the pcb, oled displace and switch to check where the wall of the case should end and how tall the plate/cover of the case should be.