StrutModeling: A Low-Fidelity Construction Kit to Iteratively Model, Test, and Adapt 3D Objects

We present StrutModeling, a computationally enhanced construction kit that enables users without a 3D modeling background to prototype 3D models by assembling struts and hub primitives in physical space. Physical 3D models are immediately captured in software and result in readily available models for 3D printing. Given the concrete physical format of StrutModels, modeled objects can be tested and fine tuned in the presence of existing objects and specific needs of users. StrutModeling avoids puzzling with pieces by contributing an adjustable strut and universal hub design. Struts can be adjusted in length and snap to magnetic hubs in any configuration. As such, arbitrarily complex models can be modeled, tested, and adjusted during the design phase. In addition, the embedded sensing capabilities allow struts to be used as measuring devices for lengths and angles, and tune physical mesh models according to existing physical objects.

[1]  Buntarou Shizuki,et al.  Lightweight Capacitance-based Block System for 3D Space Interaction , 2016, ISS.

[2]  Hiroshi Ishii,et al.  Topobo: a constructive assembly system with kinetic memory , 2004, CHI.

[3]  Dieter Fox,et al.  DuploTrack: a real-time system for authoring and guiding duplo block assembly , 2012, UIST.

[4]  Robert Kovacs,et al.  Protopiper: Physically Sketching Room-Sized Objects at Actual Scale , 2015, UIST.

[5]  Tovi Grossman,et al.  An interface for creating and manipulating curves using a high degree-of-freedom curve input device , 2003, CHI '03.

[6]  Hod Lipson,et al.  ModelCraft: capturing freehand annotations and edits on physical 3D models , 2006, UIST.

[7]  Xiang 'Anthony' Chen,et al.  Reprise: A Design Tool for Specifying, Generating, and Customizing 3D Printable Adaptations on Everyday Objects , 2016, UIST.

[8]  Sean Follmer,et al.  Makers' Marks: Physical Markup for Designing and Fabricating Functional Objects , 2015, UIST.

[9]  Satoshi Matsuoka,et al.  Teddy: A Sketching Interface for 3D Freeform Design , 1999, SIGGRAPH Courses.

[10]  Yoshifumi Kitamura,et al.  Real-time 3D interaction with ActiveCube , 2001, CHI Extended Abstracts.

[11]  Emiko Charbonneau,et al.  Interactive 3D Model Acquisition and Tracking of Building Block Structures , 2012, IEEE Transactions on Visualization and Computer Graphics.

[12]  Ellen Yi-Luen Do,et al.  FlexM: Designing a Physical Construction Kit for 3d Modeling , 2006 .

[13]  Olga Sorkine-Hornung,et al.  Rig animation with a tangible and modular input device , 2016, UIST.

[14]  Stefanie Müller,et al.  WirePrint: 3D printed previews for fast prototyping , 2014, UIST.

[15]  B. Roth Rigid and Flexible Frameworks , 1981 .

[16]  Hiroshi Ishii,et al.  Senspectra: a computationally augmented physical modeling toolkit for sensing and visualization of structural strain , 2007, CHI.

[17]  Li-Wei Chan,et al.  FlexiBend: Enabling Interactivity of Multi-Part, Deformable Fabrications Using Single Shape-Sensing Strip , 2015, UIST.

[18]  Hans-Werner Gellersen,et al.  SPATA: Spatio-Tangible Tools for Fabrication-Aware Design , 2015, TEI.

[19]  Hiroshi Ishii,et al.  KidCAD: digitally remixing toys through tangible tools , 2012, CHI.

[20]  Ryan Schmidt,et al.  meshmixer: an interface for rapid mesh composition , 2010, SIGGRAPH '10.

[21]  Robert Kovacs,et al.  TrussFab: Fabricating Sturdy Large-Scale Structures on Desktop 3D Printers , 2017, CHI.

[22]  Michael Eisenberg,et al.  Easigami: virtual creation by physical folding , 2012, TEI.

[23]  Takeo Igarashi,et al.  SketchChair: an all-in-one chair design system for end users , 2011, Tangible and Embedded Interaction.

[24]  David Kim,et al.  MixFab: a mixed-reality environment for personal fabrication , 2014, CHI.

[25]  Stefanie Müller,et al.  Platener: Low-Fidelity Fabrication of 3D Objects by Substituting 3D Print with Laser-Cut Plates , 2015, CHI.

[26]  Olga Sorkine-Hornung,et al.  Tangible and modular input device for character articulation , 2014, SIGGRAPH Emerging Technologies.

[27]  Tovi Grossman,et al.  RetroFab: A Design Tool for Retrofitting Physical Interfaces using Actuators, Sensors and 3D Printing , 2016, CHI.

[28]  Tovi Grossman,et al.  Pineal: Bringing Passive Objects to Life with Embedded Mobile Devices , 2017, CHI.

[29]  Paul A. Beardsley,et al.  Tangible interaction + graphical interpretation: a new approach to 3D modeling , 2000, SIGGRAPH.

[30]  Hans-Werner Gellersen,et al.  ReForm: Integrating Physical and Digital Design through Bidirectional Fabrication , 2015, UIST.

[31]  Ellen Yi-Luen Do,et al.  Posey: instrumenting a poseable hub and strut construction toy , 2008, Tangible and Embedded Interaction.

[32]  Hiroshi Ishii,et al.  Triangles: tangible interface for manipulation and exploration of digital information topography , 1998, CHI.