"Hierarchical (Quadtree)"

Folded paper, 18"x18", 2008.

The quadtree is a standard data structure in computational geometry and graphics, and is represented here by a collection of pleats folded in a sequence that corresponds to the hierarchy defined by the quadtree.

"Edge Expansion x16"

Folded paper, 5"x5"x4", 2008.




Edge expansion is a study of the curvature formed by a sheet whose edges are stretched; to achieve the same effect with a largely inextensible sheet of paper, I first folded many pleats, and then stretched apart only the ends of the pleats, where they reach the edge of the paper sheet.

"Octagon Ruffle (copper)"

Folded copper sheet, 8"x8"x4", 2009.

Like Edge Expansion, the ruffle is also a curved surface formed by a sheet whose perimeter is stretched. However, the mechanism is different here: instead of pleating the whole sheet, an octagonal ``bulb'' is formed in the center, shortening the radius and forcing curvature. The ruffle was inspired by the paperfolded works of Philip Chapman-Bell, and this particular execution of it was folded from 36 gauge copper sheet.

"Kozo Twist"

Folded paper, 6"x4"x5", 2009.




Another study of edge expansion, Kozo Twist is formed by only stretching two adjacent sides of the pleated sheet. The Twist was folded from handmade kozo paper.

Goran Konjevod, Assistant Professor of Computer Science
Arizona State University 24. Where you live or work: Tempe, Arizona

"I try to fold 'organic' origami, studying the natural tension in a folded sheet of paper and how it leads to the final shape. Most of my work uses only the simplest folds. Working with, instead of against, the thickness of paper, allows my regular or irregular folding sequences to shape curved surfaces and lines. Many of my pieces are discovered rather than designed. One of the topics I have been exploring recently is the folding of curved surfaces by first reducing the size of the sheet through folding pleats or other structures, and then applying selective unfolding to create ``extra'' area which forces the surface to curve. "