I wonder if the top one, what I am calling the large convex corner, will work best with a swell wall on each side? It almost appears like it doesn't go all the way back to the corners of the floor.

Can't wait to see that tight convex corner used in a stepped wall!

Nate ?

I would think the tight corner could be used in place of a floor piece where the cavern steps outward to create a more flowing elegant sweep instead of a choppy stagger.

I'm going to say that both of these are convex corners. One with a large radius and one with a very tight radius.

2 more hours till puzzle drop?

My guess is it's the convex corner based on the shape of the puzzle.

If we had just a couple more freestanding wall pieces, especially a one inch piece, there wouldn't be a cavern out there we couldn't replicate.

Has anyone considered the use of the proposed elevation platform lid as a cavern floor terrain tray? It would make great use of the freestanding curved walls and straight walls. You could do some really interesting caves. If you could glue a thin sheet of steel under the lid and put magnets in the w...