Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	acadia12_97
id	acadia12_97
authors	Lilley, Brian ; Hudson, Roland ; Plucknett, Kevin ; Macdonald, Rory ; Cheng, Nancy Yen-Wen ; Nielsen, Stig Anton ; Nouska, Olympia ; Grinbergs, Monika ; Andematten, Stephen ; Baumgardner, Kyle ; Blackman, Clayton ; Kennedy, Matthew ; Chatinthu, Monthira ; Tianchen, Dai ; Sheng-Fu, Chen
year	2012
title	Ceramic Perspiration: Multi-Scalar Development of Ceramic Material
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 97-108
doi	https://doi.org/10.52842/conf.acadia.2012.097
summary	Ceramic building material is a useful passive modulator of the environment. The subject area is based on traditional cultural and material knowledge of clay properties: from amphora to rammed earth building; and ranges to present uses: from desiccants and space shuttle tile patterns to bio-ceramics. The primary consideration is to control material density and porosity in a tile component, in response to specific environmental conditions. This depends on a number of key physical principles: the ability of the material to absorb thermal energy, the ability to absorb and then ‘wick’ moisture within the pore structure, and the decrement factor or ‘time lag’ of the effect. The interplay between these properties point to the importance of directionality in the porous microstructure, at the boundary layer. Material characteristics have been investigated in the laboratory at a micron scale and in the ceramics workshop at full scale, with some interplay between the two. Recent work done on monitoring has led to the development of software tools that allow feedback (approaching real time)- a visual representation of the dynamic thermal and hygrometric properties involved.
keywords	Synthetic tectonics , composite materials , smart assemblies , emerging material processes , Responsive environments , sensing , real-time computation , feedback loops , Information Visualization
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:59

_id	acadia07_000
id	acadia07_000
authors	Lilley, Brian, Beesley, Philip (eds.)
year	2007
title	Expanding Bodies: Art • Cities• Environment
source	Proceedings of the 27rd Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-17 October, 2007.
doi	https://doi.org/10.52842/conf.acadia.2007
series	ACADIA
last changed	2022/06/07 07:49

_id	ecaade2021_059
id	ecaade2021_059
authors	Lim, Ariel Cheng Sin and Thomsen, Mette Ramsgaard
year	2021
title	Multi-Material Fabrication for Biodegradable Structures - Enabling the printing of porous mycelium composite structures
source	Stojakovic, V and Tepavcevic, B (eds.), Towards a new, configurable architecture - Proceedings of the 39th eCAADe Conference - Volume 1, University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021, pp. 85-94
doi	https://doi.org/10.52842/conf.ecaade.2021.1.085
summary	Our awareness of the earth's depleting resources has directed focus towards biomaterials, which can be extracted sustainably and biodegraded after use. Current fabrication of biomaterial structures is still restricted in strength and geometry, limiting its use in construction. This paper presents a novel two-phase multi-material fabrication process to create mycelium composite structures of higher porosity and complexity with speculated improvements in strength. First, cellulose pulp inoculated with mycelium is extruded. Then, each layer is filled by a secondary supporting material. This material, in the form of a gravel- and sand-slurry, acts as an inhospitable medium steering mycelial growth, additionally improving aeration to produce stronger structures. After an intermediate growth period, the secondary material, reusable in a closed-loop production model, is removed to reveal the fully-grown mycelium structure. The paper reports on each of the three aspects: the fabrication process, material experimentation of primary and secondary substrates, as well as geometry of varying porosity and performance.
keywords	biomaterials; mycelium; biodegradable structures; robotic fabrication; additive manufacturing
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ecaade03_615_54_kheng
id	ecaade03_615_54_kheng
authors	Lim, Chor-Kheng
year	2003
title	Is a pen-based system just another pen or more than a pen?
source	Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 615-622
doi	https://doi.org/10.52842/conf.ecaade.2003.615
summary	Freehand sketch is the most critical stage in the design process. The importance of the freehand sketch is in its ability to freely represent various projections of ambiguous drawing using a convenience tool, pen-and-paper. Recently, pen-based system which developed attempted to use pen as an input device, allowing sketches to be freely drawn on computers. However, as far as the various drawing projections, such as diagram, symbol, plan, elevation, section, perspective, etc., how are they interrelated to a designer’s cognitive behavior? Different media have different abilities to represent projections. What’s the difference of design cognitive behavior between conventional pen-and paper and pen-based system in view of both using a pen as a design medium? This research proceeds a think-aloud protocol analysis to present an analysis and discussion. Research results show that there is a relationship of gradual embodiment, mutually complementary, going from a whole to being dissected into sections between the different projections. Moreover, pen-based system is more than a pen, it allows designer to inspect a 3-D view during the sketching stage. This gives the designer more opportunities during the sketching stage to conduct the design thinking process based on the ambiguous 2-D projections and the more concrete 3-D images, as well as more opportunities for visual feedback
series	eCAADe
email
last changed	2022/06/07 07:59

_id	acadia03_049
id	acadia03_049
authors	Lim, Chor-Kheng
year	2003
title	An Insight into the Freedom of Using a Pen: Pen-based System and Pen-and-paper
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 385-393
doi	https://doi.org/10.52842/conf.acadia.2003.385
summary	In earlier researches on freehand sketching, the cognitive behavior of designers was studied. In recent years, some researchers began to look into this area from the design media aspect. The pen-based system, developed by Gross, Landay and other researchers, used the pen as an input device, allowing sketches to be freely drawn in a computer environment. The importance of the freehand sketch lies in its ability to freely represent various drawing projections using ambiguous sketches. However, as for the various drawing projections, such as diagrams, symbols, plans, elevations, sections, perspectives, etc., how are they interrelated to a designer’s thinking process and the cognitive behavior? Different media have different abilities to represent different projections. Would they affect the designer’s design thinking as well? Targeting different media, i.e., conventional freehand sketches vs. the computer pen-based system, this research uses case studies and think-aloud protocol analysis to present an analysis and discussion. Research results show that there is a relationship of gradual embodiment that is mutually complementary, going from a whole perspective to being the dissected into sections between the different projections. In addition, these projections restrict the designer’s various design thinking processes, while the use of different media may somewhat change the actual design thinking of the designer
series	ACADIA
email
last changed	2022/06/07 07:52

_id	acadia03_051
id	acadia03_051
authors	Lim, Chor-Kheng
year	2003
title	G Pen: An Intelligent Designer’s Playmate
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 403-409
doi	https://doi.org/10.52842/conf.acadia.2003.403
summary	In the field of design the pen-based system is a newly developed computer interface that provides the designer with the convenience of a pen in freehand sketches. But these pen-based systems only focus on an interface familiar to the designers and the application of the hardware and software that go with it, treating the pen only as a mouse-like input device. As pen and pad are devices for the pen-based system, the hope is that they can be endowed with more intelligent characteristics to let them interact with designer’s gestures and become a creative source for the designers, while simultaneously preventing the design fixation encountered by designers during design process. This research utilizes the unintentional hand gestures made by designers, such as the designer’s grip of the pen or movement involved in playing with the pen, putting it down, knocking it, twisting it or shaking it, during the thinking process or when running into a design fixation. From the interaction between the pen and the pad, certain actions may be generated to stimulate the designer’s thinking process. This research uses a neural network as the main learning mechanism for the eventual development of a prototype of a pen-based drawing system that provides timely visual stimulation: a G Pen system.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	caadria2009_186
id	caadria2009_186
authors	Lim, Chor-Kheng
year	2009
title	Digital CAD/CAM Media Realizes Chinese Calligraphy Aesthetics in Architectural Design
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 225-234
doi	https://doi.org/10.52842/conf.caadria.2009.225
summary	This paper attempts to explore a design method that incorporates the concept of ancient Chinese Art aesthetics into modern architectural form and space. Through the Case Study, a preliminary framework of freeform design process in using CAD/CAM media is concluded. It reveals the digitalized design process of artistic freeform space and shows Chinese calligraphy aesthetics in contemporary architecture.
keywords	Chinese Art: aesthetics; calligraphy; CAD/CAM media; digital design process
series	CAADRIA
email
last changed	2022/06/07 07:52

_id	sigradi2010_22
id	sigradi2010_22
authors	Lim, Chor-Kheng
year	2010
title	A Teaching Framework of an “E - basic Design Studio”
source	SIGraDi 2010_Proceedings of the 14th Congress of the Iberoamerican Society of Digital Graphics, pp. Bogotá, Colombia, November 17-19, 2010, pp. 22-25
summary	The objective of this research is to illustrate the teaching of CAD/CAM media in basic design studios for 1st and 2nd year undergraduate students. The research consequently establishes a framework for an “e - basic design studio” based on design studio observations and analysis of academic literature, which include the new thoughts on tectonics and the operation of traditional 2D/3D design media and CAD/CAM digital tools.
keywords	design education, basic design studio, CAD/CAM media, digital thinking.
series	SIGRADI
email
last changed	2016/03/10 09:54

_id	acadia06_386
id	acadia06_386
authors	Lim, Chor-Kheng
year	2006
title	From Concept to Realization
source	Synthetic Landscapes [Proceedings of the 25th Annual Conference of the Association for Computer-Aided Design in Architecture] pp. 386-391
doi	https://doi.org/10.52842/conf.acadia.2006.386
summary	This research aims to provide a deeper understanding of the unique features of CAD/CAM media tools and their applications. Moreover, it analyzes the role of the CAD/CAM media in the fabricating of physical models and the kind of added benefits they offer above and beyond those of traditional hand-made physical models. This research concludes that certain aspects of CAD/CAM can aid in the digital design process.
series	ACADIA
email
last changed	2022/06/07 07:52

_id	ascaad2010_051
id	ascaad2010_051
authors	Lim, Chor-Kheng
year	2010
title	Towards a Framework for CAD/CAM Design and Construction Process in Freeform Architecture: A Case Study
source	CAAD - Cities - Sustainability [5th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2010 / ISBN 978-1-907349-02-7], Fez (Morocco), 19-21 October 2010, pp. 51-64
summary	The objective of this research is to apply the teaching of CAD/CAM media to basic design studios for 1~2 year undergraduate students. The research concludes a framework of “e-basic design studio” based on literature analysis and design studio observations, which including the new tectonics thinking and the operation of traditional 2D/3D design media and CAD/CAM digital tools.
series	ASCAAD
email
last changed	2011/03/01 07:36

_id	ijac20108304
id	ijac20108304
authors	Lim, Chor-Kheng
year	2010
title	A framework of CAD/CAM design and construction process for freeform architecture: a case study
source	International Journal of Architectural Computing vol. 8 - no. 3, pp. 301-318
summary	This research aims to analyze the design and construction process of the built freeform architectural projects and understand deeply the applications of the CAD/CAM media tools, and come up with a preliminary framework of an executable general CAD/CAM design and construction process in freeform architectural design.
series	journal
last changed	2019/05/24 09:55

_id	caadria2014_529
id	caadria2014_529
authors	Lim, Chor-Kheng
year	2014
title	Waters: An Interactive 3D-Printed Customized Planter Design for the Elderly
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 969–970
doi	https://doi.org/10.52842/conf.caadria.2014.969
series	CAADRIA
type	poster
email
last changed	2022/06/07 07:52

_id	caadria2021_033
id	caadria2021_033
authors	Lim, Chor-Kheng
year	2021
title	Towards a framework for emotional tactile interaction design
source	A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 2, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 335-344
doi	https://doi.org/10.52842/conf.caadria.2021.2.335
summary	This study aims to explore the possibility of maintaining intuitive behavior patterns and the most natural relationship coming from physical touch between human and object as interaction behaviors in interaction designs. Such an interaction will convey affection while providing brand new applications and innovative experiences offered by digital technology. Interactive behavior is natural, but the experience of affection is novel is the core idea of the interaction design in this study. The study aims to use a familiar artifact in daily life as the main carrier and embed technology in them and activate them, enabling them with sensitive sensing ability. With such an ability, the interaction between human and objects is thus sensed in a pattern of touch, which itself is affective and interactive. Interactions at the proper time can be provided as feedback, allowing users to experience emotional interaction. Through the analysis of the authors six interaction design projects and experiments over 10 years, the design process and framework for emotional tactile interaction design in using a familiar artifact is proposed.
keywords	Tactile; Interaction design; Intuitive behavior; Familiar artifact
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2022_496
id	caadria2022_496
authors	Lim, Chor-Kheng
year	2022
title	Presence Stickers: A Seamlessly Integrated Smart Living System at a Solitary Elderly Home
source	Jeroen van Ameijde, Nicole Gardner, Kyung Hoon Hyun, Dan Luo, Urvi Sheth (eds.), POST-CARBON - Proceedings of the 27th CAADRIA Conference, Sydney, 9-15 April 2022, pp. 445-454
doi	https://doi.org/10.52842/conf.caadria.2022.1.445
summary	This research develops Presence Stickers, the capacitive sensing module that can be easily affixed to the existing space element surfaces (such as a wall, door, stairs), and daily objects or home furniture (such as a chair, cabinet, table, sofa, etc.). These 30*30 cm Presence Stickers can actively sense people‚s physical behaviors and body movements in spaces. From the preliminary analysis of observing the 80-year-old elderly subject‚s daily activities, the movement trajectory of the ‚Move-Stop‚ pattern is found. There will be a Touch (T) and Touchless (TL) relationship between the body and the space elements or objects. Furthermore, the touchless, or non-contact, intimate relationship can also be divided into two types: 1. The body that ‚Passes by‚ (P) the spatial elements or objects, and 2. The body that ‚Stays‚ (S) in front of the object and performs activities. These three types of the intimate relationship between bodies and objects, i.e., T, TL-P, and TL-S, were used as the main sensing conditions to develop the Presence Stickers sensor module. We affixed 8 Presence Stickers on 9 objects in six spaces and finally, the life pattern can be analyzed and the sensors provide the customized intelligent application function for the elderly.
keywords	Intuitive Interaction Design, Capacitive Sensor, Daily Object, Touchless, Body Movement, Smart Home, SDG 3
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	caadria2023_406
id	caadria2023_406
authors	Lim, Chor-Kheng
year	2023
title	Gesture Modeling – In Between Nature and Control
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 189–198
doi	https://doi.org/10.52842/conf.caadria.2023.1.189
summary	This research develops a robotic arm-controlled wax material fluidity shape/form-making system that combines AI image recognition and remote control capabilities. AI image recognition is used to capture the designer's hand gestures or movements as an intuitive input method for controlling shape forming. It gives the designer active control of the desired model shape through the temperature, rotation, and movement controls in the process of phase change of wax materials. The system has the additional advantage of remote control, allowing designers to create wax models remotely through intuitive gesture-controlled interactions. This advantage will become a new method of the digital co-creation process.
keywords	Form-finding, Gesture Modeling, Wax, Phase Change Material, Robotic-arm Controlled
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	caadria2024_513
id	caadria2024_513
authors	Lim, Chor-Kheng
year	2024
title	From Pencil to Pixel: The Evolution of Design Ideation Tools
source	Nicole Gardner, Christiane M. Herr, Likai Wang, Hirano Toshiki, Sumbul Ahmad Khan (eds.), ACCELERATED DESIGN - Proceedings of the 29th CAADRIA Conference, Singapore, 20-26 April 2024, Volume 3, pp. 89–98
doi	https://doi.org/10.52842/conf.caadria.2024.3.089
summary	This study explores the integration of Artificial Intelligence-Generated Content (AIGC) in design processes, focusing on the ideation phase. Utilizing in-depth interviews with experienced designers and an experimental approach with novices, it compares AIGC tools like ChatGPT, Midjourney and Copilot with traditional sketching methods. The findings reveal two distinct operational patterns in AIGC utilization: a subtractive method of refining AI outputs and an additive method of evolving design through AI suggestions. Experienced designers view AIGC as a powerful aid for creative ideation, while novices prefer familiar hand-drawing methods. The study proposes a "Seeing-Instructing-Seeing" model, adapting Schön's reflective practice model, to incorporate the collaborative dynamic between designers and AI, marking a shift from manual to intellectual labor in design ideation. This represents a paradigm shift in design methodologies, suggesting a future of co-creative partnerships between designers and AI tools.
keywords	AIGC, Ideation Design Process, Textual Thinking, Creativity
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	acadia11_396
id	acadia11_396
authors	Lim, Jason
year	2011
title	Let’s Work Together: A Stigmergic Approach to Acoustic Design
source	ACADIA 11: Integration through Computation [Proceedings of the 31st Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)] [ISBN 978-1-6136-4595-6] Banff (Alberta) 13-16 October, 2011, pp. 396-403
doi	https://doi.org/10.52842/conf.acadia.2011.396
summary	This paper explores the application of agent-based modeling techniques to the domain of acoustics design. Concepts derived from Stigmergy, which is a class of mechanisms that mediate interactions between social organisms, are applied to a custom implementation of a raytracing based acoustics simulator. Rays are given the agency of changing the geometric and material properties of the surfaces they come in contact with during the raytracing phase. The acoustic simulation process is an active one, where the modeled room environment is adapted while being evaluated. Given performance criteria as input, the simulation process is applied to an auditorium example. The auditorium is adapted and its eventual emergent design has improved acoustic performance. It is hoped that this work will demonstrate the potential of coupling multi-agent systems with simulation processes in order to create new design tools.
series	ACADIA
type	work in progress
email
last changed	2022/06/07 07:59

_id	caadria2014_173
id	caadria2014_173
authors	Lim, Jason; Ammar Mirjan, Fabio Gramazio and Matthias Kohler
year	2014
title	Robotic Metal Aggregations
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 159–168
doi	https://doi.org/10.52842/conf.caadria.2014.159
summary	The recent convergence of computational design and digital fabrication has made new forms of architectural materialization possible. A workshop conducted at the Royal Melbourne Institute of Technology investigated how differentiated lightweight metal structures may be designed and fabricated under these new conditions. The workshop aim was to complete three such structures; each one is aggregated from aluminum profiles that are robotically assembled according to computationally driven geometric logics. The key challenge was to enable participants, assumed to lack programming and robotic fabrication experience, to design and construct their structures within imposed time constraints. This paper describes the subsequent development of accessible computational design tools and a robust robotic fabrication method for the workshop, and highlights the key decisions taken with their implementation. The workshop results are discussed and the design tools evaluated with respect to them. The paper concludes by recommending an approach to developing computational design tools which emphasizes the importance of usability and integration with the fabrication process.
keywords	Robotic fabrication; computational design; visual programming; lightweight structures
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2013_056
id	caadria2013_056
authors	Lim, Jason; Fabio Gramazio and Matthias Kohler
year	2013
title	A Software Environment for Designing Through Robotic Fabrication – Developing a Graphical Programming Toolkit for the Digital Design and Scaled Robotic Fabrication of High Rises
source	Open Systems: Proceedings of the 18th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2013) / Singapore 15-18 May 2013, pp. 45-54
doi	https://doi.org/10.52842/conf.caadria.2013.045
wos	WOS:000351496100005
summary	The term “robot” was born from a play written almost a century ago. Today robotic fabrication has become an emerging topic in architectural research. As architects work with these technologies, they are challenged with writing a different kind of play: here robots are the actors and the physical materialization of a design is their performance. However current Computer Aided Design (CAD) packages do not provide native robot programming functionalities which architects require to plan and orchestrate these fabrication process. To address this limitation, a Python library for robot programming is written. It is referenced by a toolkit of custom components developed to extend a graphical programming environment commonly used for architectural design. The empirical development of these software tools takes place in the context of a design studio investigating the subject of the high rise. The tools are tested in a workflow that involves the digital design and scaled robotic fabrication of high-rise housing. This paper discusses the considerations underlying the toolkit’s design, the outcomes of its use in the studio, and its impact on the creative design process.
keywords	Robotic fabrication, Architectural model, Software tools, High rise design, Creative computational design
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ijac20086403
id	ijac20086403
authors	Lim, Sungwoo; Prats, Miquel; Jowers, Iestyn; Chase, Scott; Garner, Steve; McKay, Alison
year	2008
title	Shape Exploration in Design: Formalising and Supporting a Transformational Process
source	International Journal of Architectural Computing vol. 6 - no. 4, 415-433
summary	The process of sketching can support the sort of transformational thinking that is seen as essential for the interpretation and reinterpretation of ideas in innovative design. Such transformational thinking, however, is not yet well supported by computer-aided design systems. In this paper, outcomes of experimental investigations into the mechanics of sketching are described, in particular those employed by practicing architects and industrial designers as they responded to a series of conceptual design tasks. Analyses of the experimental data suggest that the interactions of designers with their sketches can be formalised according to a finite number of generalised shape rules. A set of shape rules, formalising the reinterpretation and transformations of shapes, e.g. through deformation or restructuring, is presented. These rules are suggestive of the manipulations that need to be afforded in computational tools intended to support designers in design exploration. Accordingly, the results of the experimental investigations informed the development of a prototype shape synthesis system, and a discussion is presented in which the future requirements of such systems are explored.
series	journal
last changed	2009/03/03 07:48

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