Task Model
The eyebrow roof dormer with straight valley
Fledermausgaube mit gerader Kehle
Brad Morse asked me if I knew what the green lines were for in this eyebrow dormer with straight valleys and I now know the answer. The (3) green lines intersect the sloping lines of the eyebrow profile slope line and locate the perpendicular bisectors for the radius points of each of the arcs that make up each eyebrow rib. The green line to the left locates all of the radius points for the arcs on the left hand side of the rib. The green line at the top of the drawing locates all of the radius points for the ribs on the right hand side of the drawing.
Drawing with the canted valley rafters.
Drawing showing the inside canted valley following the arc--to level line.
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