Only the screw near the Ethernet jack has the extra "standoff" nut — the others pass straight through.
Once installed, the board will be very slightly canted. This is normal and won't show once finished, and
does not adversely affect operation.
For Arduino Uno + Shield
:
The mounting hole nearest the USB connector is NOT used!
Insert three screws in the remaining holes — one near the DC power jack, and in the remaining
two holes at the far end of the board.
Place board on plate by feeding the three screws through the corresponding holes.
Secure the three screws with nuts.
The Ethernet shield can now be installed on top of the board.
With this board combination, you will have an extra unused nut when finished. Once installed, the board
will be very slightly canted. This is normal and won't show once finished, and does not adversely affect
operation.
7: Join first case side
Identify the two acrylic side pieces. These are interchangeable; there is no right or left, but there
is a specific orientation:
