Basic ground plan for the Valley Sleeper on oblique adjacent roof.
Drawing with the roof surface plane developed and some of the valley lines on the roof surface plane.
Zoomed in view of the valley lines, including the hidden bottom edge of the valley sleeper on the roof surface plane.
Drawing with the valley sleeper bird mouths lines developed.
Witches cut lines for the ground view of the valley sleeper rafters.
Witches cut lines for the valley sleeper rafters on the roof surface plane.
Method #two for developing the witches cut lines and the lines for the valley rafter bevel on the roof surface at the peak of the valley sleeper rafters.
Checking my drawing with the 3D valley sleeper rafters.