extra board and ball for the game "dimensions"

I really like the game dimension https://www.boardgamegeek.com/boardgame/153318/dimension but it only plays up to 4 players due to the limitation of boards and balls.

So I am going to remove the insert and put two more sets of board + 12 balls needed for each player to take it up to a 6 player game.

I will likely buy 25mm marbles for the balls, but I provided an .stl of a 25mm sphere. With supports and some filing/sanding it should print out okay. (lift it off the bed plate for better re