Time passes...
I moved the chair under construction to another room, and suddenly I did not naturally pass it every day anymore...
...and the project stalled.
Until I understood the mechanism, and I moved it in front of the TV, decided I had taken enough photos of cloths and weaving and that writing down all the stories of the cloths would stop me from getting the work done - I quickly finished the whole chair in one late evening while watching a film. Yet some detailes can be adjusted, but it feels nice to at last have a chair that can be used!
T-shirt Chair full of memories, almost ready (a few details to fix)