here this is simply play to big tic tac toe.that nice for 3D.This is like V And U. here see the picture 2 -First surface mirror For X And O. but is have cautions for cutter.
Step 1: Required material
sorry i have not photo for Required material because is my mistake for photo delete.is my camera not this is my brother.
Required material :-
1.Foam board ( 5mm)