The Draw Down Technique for task models is a game changer. It's so easy that I could easily teach a first year apprentice to draw out the Draw Down Roof Surface to mark and cut the rafters rotated into the roof surface plane. It's so simple I envision putting the Saint Andrews Cross at the top of the next hip roof we frame or Hexagon, or Octagon Roof.

http://sbebuilders.blogspot.com/2013/11/draw-down-technique.html

Sim