Terraforming Mars Playermat Overlay

I had to take an existing overlay and edit it to fit my printer bed Ø200
Thus i split the overlay into three parts and made them, so that they are being puzzled together.
I also removed the slot for the red colored beam between Steel/Titan and Energy/Heat.
I didn´t see any reason to Keep it in and replaced it with a "Terraforming Mars" writing, using the "Enter Sansman" Font.
The backside has a 1mm deep indentation for the playermat to fit in.
The whole thing is upside down, so that no supp