Test with the full scale mock-up model made of 4 layers cardboard. The supproting problem in the bottome part came out and need some refinement for it.
Model #02 is consist of two parts as well as #01. It's also 1:10 scaled size model with box board (1mm thickness). The key point of this model is using human weight to be firm of seat to bottom part. It looks quite easy to assemble and disassemble. The bottom part is still needed to be modified the shape and size.
Model #01(1:10 scaled) is made of two part with 3 pieces of board. Most of surfaces in top part is double layered and cross slot-in is used as joining method between top and bottom parts.
Still need to develop some section such as arm part, bottom rear part and specific size of whole parts.
After stage two(3 concepts), I decided to design a chair with the folding one or two pieces of X-board. According to the size of one sheet (1200 X 1830mm), it is hard to use only one sheet to fold to be a chair, therfore I've been playing with normal paper to fold and become a part of whole chair. These are some of sketches, before the folding process.