The design
process of the outline (none geometric)
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The design process of the outline (none geometric)
Step D XI is the shape of a special cross section determined by the 3D geometry. XII, XIII, XIV show possible scoop arangements to be determent by the violin maker. It's the choice of the violin maker that determines the shape of the out line.
Step E Drawing an outer contour line of both upper and lower parts the line almost forms an equilateral triangle with the geometric layout lines that are part of the 2D construction. Using these "triangles" the design becomes balanced between upper and lower part. Step F The circle through the original square and intersection points with the "base line" are useful to locate the corners as well as the inwardly turned "base line" to predict the "waist line"