Hex-based RPG Terrain Floors

I love 3d printable gaming terrain, but since my RPG of choice uses a hexagonal grid for movement rather than a square grid, its utility can be limited.

What I've done, then, is create a bunch of floor sections with a hex grid on them. They're scaled to 1" per hex, the orthodox scale for GURPS. They can be arranged as necessary, and any terrain which doesn't have an integral floor as part of it can be placed on it and be reasonably stable. I've also created "area of effect" overlays which can