A real remarkable staircase that comes to life after 3 months work, designed in ProENGINEER calculated on ProMECHANICA and constructed with 3mm sheetmetal parts. A real piece of art that someone must have in 1:20 scale model (365 height) on his office or desk. The difficulty was that i had to design something extraordinary that should pass through specific paths so someone can walk on it safely.