Material Transformation Designing Shape Changing Interfaces Enabled by Programmable Material Anisotropy Jifei Ou Dipl. Design, Ofenbach University of Art and Design (2012) Submitted to the Program in Media Arts and Sciences, School of Architecture and Planning, in partial fulfllment of the requirements for the degree of Master of Science in Media Arts and Sciences at the Massachussetts Institute of Technology June 2014 © 2014 Massachusetts Institute of Technology. All Rights Reserved Author Jifei Ou Program in Media Arts and Sciences May 24, 2014 Certifed by Hiroshi Ishii Jerome B. Wiesner Professor of Media Arts and Sciences MIT Media Lab Accepted by Pattie Maes Associate Academic Head, Program in Media Art and Science Material Transformation Designing Shape Changing Interfaces Enabled by Programmable Material Anisotropy Jifei Ou Submitted to the Program in Media Arts and Sciences, School of Architecture and Planning, on May 30th, 2014 in partial fulfllment of the requirements for the degree of Master of Science in Media Arts and Sciences at the Massachussetts Institute of Technology ABSTRACT This thesis takes a material perspective on designing trans- formable interfaces. The structure of material and mechan- ical properties such as stifness, can determine not only its static performances, but also, with the help of exter- nal forces, support dynamic shape change. By encoding structural or stifness distribution in the actuated mate- rials, we can partially ofoad the shape-changing control from actuators (digital) to the material itself (analogue), in order to achieve expressive transformations that cur- rent modularized actuation system cannot easily provide. The implementation of this thesis will be three series of material primitives and three application prototypes that demonstrate the real world potential of this research. Thesis Supervisor Hiroshi Ishii Jerome B. Wiesner Professor of Media Arts and Sciences MIT Media Lab 3 Material Transformation Designing Shape Changing Interfaces Enabled by Programmable Material Anisotropy Jifei Ou The following people served as readers for this thesis: Thesis Advisor Hiroshi Ishii Jerome B. Wiesner Professor of Media Arts and Sciences MIT Media Lab Thesis Reader Neri Oxman Assistant Professor of Media Arts and Sciences MIT Media Lab Thesis Reader Sangbae Kim Assistant Professor of Mechanical Engineering MIT Department of Mechanical Engineering 4 CONTENTS ABSTRACT 03 ACKNOWLEDGEMENTS 11 INITIAL REMARKS Chapter 1. INTRODUCTION 1.1 Motivation 17 1.2 Thesis Aims 19 1.3 Thesis Contribution 21 1.4 Thesis Outline 21 Chapter 2. MACHINE TO MATERIAL TRANSFORMATION 2.1 Mythology of Shapeshifting 24 2.2 Transformable Machine 24 2.3 Programmable Matter & Claytronics 28 2.3 Shape Changing Interfaces 29 2.5 Smart Materials 32 Chapter 3. MATERIAL, FORCES AND INFORMATION 3.1 Transformation in Nature 35 3.2 Material Computation 38 3.3 Model for Material Transformation 40 Chapter 4. PNEUMATIC ACTUATION PLATFORM 4.1 Inspiring Works 4.1.1 Soft Robotics 44 4.1.2 Tunable Stifness with Jamming 45 4.2 Principle of Layer-jamming 46 4.3 Control Systems 4.3.1 Infation for Deformation 47 4.3.2 Vacuum for Tunable Stifness 48 Chapter 5. PROPOSED DESIGN SPACE 5.1 Parameter 5.1.1 Deforming Forces 52 5.1.2 Programmable Material Anisotropy 54 5.2 Design Space 56 5.3 Transformation Primitives 5.3.1 Type A Primitive A 57 Primitive B 58 Fabrication 60 5.3.2 Type B Primitive C 61 Primitive D 63 Fabrication 66 5.3.1 Type C Primitive E 67 Chapter 6. APPLICATIONS AS EVALUATION 6.1 Design Principles 70 6.2 HelighX Design 70 Sensing 71 Fabrication 72 6.3 PLYABLES Design 72 Extention of Application 75 Sensing 73 Fabrication 75 6.4 JamBot Design 76 Sensing and Motion Control 76 Fabrication 77 Chapter 7. A STEP FORWARD... 7.1 Morphing Vehicle 79 7.2 Beyond Transformation 7.2.1 Ilumination 81 7.2.2 Sensing 82 7.2.3 Construction 82 7.2.4 Nano-Actuator Distribution 83 Chapter 8. CONCLUSION 85 APPENDIX 87 BIBLIOGRAPHY 91