Free GM Resource: Dungeon X

I came across this on Facebook and while it is a Free GM Resource, it's also an ad (of sorts) for a Kickstarter than ends in a bit more than a week.

Dungeon X is an interesting concept, and one I think I can get behind. Unfortunately I'm not in a position to test this out before the end of the Kickstarter, but the whole idea is basically you spend a little bit of time 3d printing corner supports and you just print off the floors and walls.....

...this just seems rather resourceful in that you don't have to use nearly so many resources to make a complete dungeon. 3D printing would take a LOT of time for a complete dungeon....and printing is relatively cheap & easy.

I'm wondering if you could make foam insulation corners or even wooden corners that you just slice or saw up......