Hi,
I was thinking to have a new shape for the filling, Full Honneycomb is great but use a lot of time and weight to not have so big distances between 2 walls.
So my proposal is a S shape or "wave" shape. All waves touch the precedent at the top of the wave. Of course, the idea is making all waves at all layers.
I can make a sketch to better explain.
What do you think ?
BR
Nico