Chess board tile version

This is a chess board for the chess set i made. The tiles are 20x20mm and are in a set of 32 so print this twice in different colours.They sit into the frame and should be glued down. There is a mm of space free on each axis of the frame to account for horizontal expansion in the tiles.The chess set is on my account along with a 3mf file for printing the tiles in the frame in multi colour.There is also a storage box this sits on top of.There is also a file of 1 tile, if 1 of the 32 tiles fail