Kingdomino setup tray

This is a set-up board for Kingdomino by blueorange games. I was inspired by a Facebook post in the BoardGameGeek group by Christopher Urinko, who had made this out of laser cut plywood. I don't have a laser cutter, so I modeled something up and printed it. There are spaces to glue some ø8mm x 3mm magnets, and when it's disassembled, it fits in the box, although it does lift the lid by a bit.

I've shown it here with the KingDomino addon by Wile (https://www.thingiverse.com/thing:2492051), which I am enjoying very much.

This is my first uploaded thing, please let me know what you think!

EDIT 2018-08-23: Uploaded new .stl (kd3_) files for a smaller version that will print on a 150mm square bed, as suggested by Torkijo. This is a 3 piece setup that will require 8 magnets in total. I haven't printed it, so please let me know how it turns out if you do.