This year, I have proof of the concept, I know that it CAN work, and I also have a fall back position ( last years frame) if I mess this one up. So needles to say, I am much more relaxed about it.
As last time, (see Intuitive sense of Connection), I have started by welding the Y shape, and then connecting the Y's into pentagons and hexagons.
The frame is emerging:
But at least I have a plan....one step at the time......