By Rona Gurkewitz

ISBN-10: 0486135608

ISBN-13: 9780486135601

Innovative, stimulating and not easy booklet combines the paintings of paperfolding with making polyhedra-based versions. initiatives diversity from the really easy dice and tetrahedron to such mind-boggling fabrications because the double pentagonal pyramid and the truncated hexadecahedron. directions and diagrams incorporated.

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Com This work was supported by a Connecticut State University/American Association of University Professors Research Grant 1993-1994. Copyright Copyright © 1995 by Dover Publications, Inc. All rights reserved. , in 1995. All drawings are by Bennett Arnstein; photography by Bill Quinnell. Library of Congress Cataloging-in-Publication Data Gurkewitz, Rona. 3-D geometric origami: modular polyhedra / Rona Gurkewitz and Bennett Arnstein. p. cm. 9780486135601 1. Origami. I. Arnstein, Bennett. II. Title.

THE CREASE PASSES THROUGH THE TWO POINTS POINT A MOVES TO POINT B INFLATE AT LOCATION SHOWN UNFOLD CHANGE VALLEY CREASE TO MOUNTAIN CREASE CUT WITH SCISSORS ROTATE The Assembly Process Overview There are various methods for folding and assembling modular origami. One can fold all of the pieces before assembling them, or one can install each piece into the model as soon as it is folded. When adding a module, there may be many sites where it can fit into the partially finished model and so an additional level of systematization can be devoted to deciding where to put the module.

One may have to partially unfold a module in order to insert a point into a pocket. This process is strange at first, but can be mastered. It is this process of assembling the last few modules of a model that makes many models “intermediate” in difficulty. The difficulty of assembly may be intermediate even though the difficulty of folding the individual modules is simple. Definition of Symbols MOUNTAIN CREASE VALLEY CREASE FOLD FOLD TOWARDS YOU, FORMING A VALLEY CREASE FOLD AND UNFOLD FOLD AWAY FROM YOU FOLD FORMING A MOUNTAIN CREASE PUSH APPLY PRESSURE B IS AN EDGE VIEW OF A B IS AN ENLARGED VIEW OF A TURN OVER FOLD SECOND CREASE UP AGAINST FIRST CREASE, THEN RE-FOLD FIRST CREASE REPEAT ONCE REPEAT TWICE CREASE ON TOP LAYER LINES UP WITH EDGE ON THE NEXT LAYER BELOW B IS A MIRROR IMAGE OF A, PRODUCED BY A COMBINATION OF & .

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3-D Geometric Origami by Rona Gurkewitz

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