PCB Nothing CMF 1 Case

I made this using the .step file from the Nothing CMF Phone 1. It is a PCB design on the case and also is on the “Circle Spinny Thing” -(Mrwhosetheboss), which should be able to screw into the phone. I used Tinkercad to design this because Freecad wasn't working out well for me. If there are any questions or anything, put it in the comments and I will try to answer it a soon as I see it. The case with nothing on the knob had supports on the back. I messed up because I didn't lower the go