Under Falling Skies Game Tile Frame - remix

I remixed Spinodal_Zeugmas great frame system for a couple of reasons:

• to add a locking system to the frames, the frames now lock together fully.
• to save filament - the frames are now hollow in the center.
• to simplify the token guides - to save filament and make movement quicker.

I also added numbers to each section to make assembly easier.

Really makes playing the game much nicer without the tiles sliding around.