Does this shape hold up good weight distribution properties when 3D-printed? Maybe this could be huge for 3D-printing mostly hollow, yet strong parts that require in fewer plastic and time spent.
I'm not sure that it's better than a dome; it might be for cases where you can't predict where on the top surface the load is going to be? I'm also not sure that a sheet of printed infill is sufficiently similar in its physical properties to a sheet of paper/card for this to transfer well, but it would be an interesting experiment to do.
The idea of origami steel sheets has stuck on my mind ever since I found out about laser welding. Cutting thin 2mm sheets of steel, stitching them back together in different shapes, and holding tons of weight? That sounds very compelling to me.
I know it's been used to build engines, which suggests they are strong, but there's also all this process around ancient swords around tempering, folding, etc that suggests that maybe just 3D-printing metals might result in weaker structures.