Today I was trying to assemble all the components, then I realised that the lid of my case is not right since the placement of all holes did not match with the PCB. I redesigned the case and assembled it again. Now the rotary switch and OLED display are too tall and overlap with the lid. Tomorrow I will fix this by extruding the lid and making more space for OLED and rotary, after that assembly should be completed (I hope so). This is what it is for now, overlapping rotary and OLED

Another change in the design was use of magnets instead of screws since I don’t have enough space for a 3D printable screw. (I am pretty sure that I am allowed to do so as long as I arrange the magnets myself. Someone pls confirm if I am allowed to use magnets or will my project be rejected)