Terraforming Mars board game player mat

Terraforming Mars player mat that can be used as an overlay on your existing cardboard player mats. It can also be build as a tray where you slide your coardboard player mat between the print and another material (like wood).

If you want to build the tray, I've used a 4mm x 16mm bolt. And used a washer to leave enough space between the print and the wood.
Since I've sliced up my object to print I've used hard paper as a surface to combine
all prints on again.