Silicon Graphics (SGI) Infinity Cube

I'm not sure what the shape is actually called, I wish I did, so if anyone knows, please comment. However here are my two designs recreating the cube structure seen in the SGI logo. I have printed both, and they both print fine. The first design (the one on the platform) will print without support, though it will sag a little on the edges. It would probably print better with. The second stand alone design requires support to print.