HaaTa wrote: Basically all Topre cap sense keyboards have domes like this. At least all the ones I've dismantled anyways.
But aren't the all usually in once sheet like in this video:
https://www.youtube.com/watch?v=l3HhDMS-nNE are they not? I haven't taken any apart so I don't know. This keyboard looks like the rubber domes come out in small groups of five or four or smaller. Easier to customize the weights or replace small sections.
It's similar to Key Tronic. Their early foam and foil key switches were also mounted in groups of five or less. Later on, they were all mounted on one sheet.
EDIT: I saw the pics of the main keyboard so it made up of two bigger sections but it still looks quite modular. I is well engineered.