Stereo S-Curve Parallel
Paul Jacksonesque Curve estimation with crimping. For parallel instructions go here.
In terms of degrees models of this type are 1° Parallel 2° Parallel, and the 2° pleats are crimp folds. Crimps are made of 2 creases, one crease of which (crease 1) is perpendicular to the 1° pleats. The other crease (crease 2) determines the angle of curvature. More specifically, the difference between the 2 creases determine the angle of curvature of the whole model. So I could make this same shape even if crease 1 weren't perpendicular to the 1° -- you can get the same curvature by offsetting the angle of crease 2 by the same amount as you offset crease 1 from perpendicular.
To get the undulating curvature here, half of the model has crease 2 x° to crease 1 and half has crease 2 -x° to crease 1.
Stereo S-Curve Parallel
Paul Jacksonesque Curve estimation with crimping. For parallel instructions go here.
In terms of degrees models of this type are 1° Parallel 2° Parallel, and the 2° pleats are crimp folds. Crimps are made of 2 creases, one crease of which (crease 1) is perpendicular to the 1° pleats. The other crease (crease 2) determines the angle of curvature. More specifically, the difference between the 2 creases determine the angle of curvature of the whole model. So I could make this same shape even if crease 1 weren't perpendicular to the 1° -- you can get the same curvature by offsetting the angle of crease 2 by the same amount as you offset crease 1 from perpendicular.
To get the undulating curvature here, half of the model has crease 2 x° to crease 1 and half has crease 2 -x° to crease 1.