Modeling a Complex Structure - Google SketchUp Workshop: Modeling, Visualizing, and Illustrating - page 213

FiG 12.8 The triangulating girder after its extrusion using the Follow Me tool: The line starts on the interior edge of the girder. Points two and three are
on the working plane itself, and the fourth point terminates on the external edge.
on the external edge of the upper flange of the upper part of the girder.
Care needed to be taken here that the end of the line does not stick to any
other surface in the model (e.g., the section). This was a bit of a painstak-
ing procedure; but because of the slight kink in the main girder, it was
impossible to put a planar triangulating girder in place. Once the path was
drawn, the triangulating girder was extruded using the Follow Me tool
(see Fig. 12.8).
Next, three additional elements were constructed. These were given nick-
names in order to be able to refer to them more easily: the Beak, the Pawn,
and the Swim Fin (see Fig. 12.9). These elements were constructed using the
two working planes and the section, and - in conjunction with the working
planes - they serve as guides for the construction of the bow. The path for the
FiG 12.9 The completed main
bow truss.