I made my own with 16.5 mm key spacing. And it uses low profile switches and needs very low profile caps due to the way I mounted the top plate. I didn't feel

I made my own with 16.5 mm key spacing. And it uses low profile switches and needs very low profile caps due to the way I mounted the top plate. I didn't feel like the usual way of mounting a plate would be rigid enough with my tight spacing; there'd be very little material between the switches. So my plate is on top of the switch body, with circular holes for the stems.