I've discovered that if you solder headers onto D8/D9/D10/5v/GND on the Nyboard for future '
sonar' sensor use, the headers interfere with part of the body juuust enough that the mounting holes no longer align.
I'll try and shave a bit off with a dremel.
(yes, I know I'm missing the header on D8 in the pics below)
If you solder them into the other side, they don't clear a Raspberry Pi. I could bend them outwards though, similar to the FTDI connector, but it's a super tight fit between the frame and the camera connector on a Pi3.
I usually solder on the other side of NyBoard so that the plastic base of pins won't interfere with the frame.
You can also install the NyBoard below the frame, it will solve the problem too.