I have started work on my first Primarch build...Roboute Guilliman! This will also be my first 8 foot tall build that will require stilts. I am collaborating with a cosplayer who will be premiering the piece.
Work is currently in the modeling phase. This is a uniquely challenging build for me. The model has a lot of complicated details that are a difficult to reproduce, but I think are really worth the effort.
I am about two-thirds of the way done with the exterior of the shin and knee pad. I plan on engineering 3D printed parts to support the interior of the part as well as provide constraints and connections at the joints to keep the assembled armor in one piece.