When designing for a sandwich case, what’s the prevailing wisdom on the size of the pcb - should the main pcb be the exact same dimensions as the case plates, or smaller to have the main pcb “inset” from the case?
Or is this a personal preference type of thing? (I am assuming there’s lot of personal preference involved here )
I’m new to keyboard design/layout so not sure if there are some “normal” conventions. From looking at output from http://www.builder.swillkb.com/ I am a bit confused as to how the “open layer” and “closed layer” fit together. “Open” appears to where the usb jack would go. Is “closed” usually a “ring” around the main pcb?
Is it typicaly to have the USB jack on the bottom of the pcb?
Googling some pictures of sandwich designs, it seems that a ring around the pcb layer is typical.