Hi Psygorn
These designs are so interesting, especially the box with 7 leaves. I wish I could understand the math behind it! :)
This is the tutorial I studied to get the process of making it.
https://eleccelerator.com/3d-printed-mechanical-iris-dome-all-one-piece/

After several trial and error, I managed to make these nodes. (Attached)
The anchor point for the first node is on the corner of the leaf. (According to the tutorial. Max 6 leaves)

I played a bit with different anchor point positions on next 3 nodes.
In these nodes, leaf number can be set to a higher number, But I'm guessing they are not 3d print friendly?
I think moving the anchor point to the outside of the leaf is the key to have more leaves,
But where is the most efficient position for anchor point?