Designing Accurate Case For Electronics | Sponsored By PCBWAY 

helpful. thanks. I also add m3 sized mounting holes on the pcb so that I can mount the pcb on top raised holes from the case.

wow! fantastic and clean outcome!

Thank you for this. Excellent info!

I actually used different screw terminals than ones in the 3D model. That's why I modeled the case to bee "too thin" and the screw terminals came through the case in the end. I didn't see need for creating proper models for these terminals.