RetroFlag NESPi Embedded NFC Tray

This are the parts to modify the RetroFlag NESPi case and add a cartridge slot with a functional embedded NFC tray.
The tray included in this project, is a modified version of kiddingme's embedded NFC tray published Apr 9, 2017, his original design can be found here:
https://www.thingiverse.com/thing:2238242.
The NFC cartridge in the project is a slim down version of the "Cartridge mod requires no glue" published Jan 31, 2017 by kiddingme, you can find more information about this project at