how to make periodic minimal surface using only grasshopper??

I come across the s'-s" Schoen's Hybrid Triply Periodic Minimal Surface, and i am exploring the potential of taking it as an architecture. 

1)Does anyone know how to create that periodic surface in rhino? I dont even know how to draw the 1st piece in rhino, coz its hard for me to determine the geometry by that picture.Can anyone help?It is better for me to work on it only in grasshopper.

And i studied this tutorial which give me some idea working on it:http://www.cerver.org/2010/grasshopper-parametric-schoen-f-rd/