Cubic Knot (hard to print)
It's quite hard to printing, because over 50% sides are in the air, without touching the table. You have to set support for all sides anywhere, with maximum vertical distance below 0.2mm. I used 0.1mm. It's because the forces of corner lifting, curling are serious, see picture 2. You have to use supports 45 degrees and more than 20% with enough margin and distance, to keep the element while printing.
If you have better idea for printing this item, please share in comments.
Anyway, it's great as some cube stand too.