Base for Microchip Curiosity Nano Explorer EV58G97A

This base is for the Microchip product Curiosity Nano Explorer EV58G97A that suits various development boards made by Microchip. I'm using it with an AVR64DU32, there are a lot of different kinds available. This base protects the bottom and edges of the development board, it comes with rubber feet on it but is around $100 investment so worth protecting further. Because I will also want to add a couple of sensors that are not on the base board there are 5 mounting holes at 25mm intervals at the base of the board to secure extra components during development. 

M3 brass inserts are used in all of the mounting holes.

(The pictures show the base printed in a red/gold/purple silk PLA that looks different when viewed from different angles.)