Tornado Tower in Archicad Tutorial without Grasshopper or any addon

Hi all. We are going to be modelling Tornado Tower without any addon like Grasshopper. This is curved tower and can't be modelled with basic walls, curtain walls etc. We are going to be using different technics. ► 1 v 1 Private ArchiCAD Lesson https://bit.ly/3rUY0QB ► PROJECT FILE https://bit.ly/3msgQ9G ► Basic Floor Plan Tutorial From Scratch!    • ARCHICAD Tutorial # BASIC FLOOR PLAN