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	c9cf
authors	Logan, B. and Smithers, T.
year	1993
title	Creativity and design as exploration
source	J.S. Gero and M. L. Maher (eds), Modelling Creativity and Knowledge-Based Creative Design, Lawrence Erlbaum Associates, pp. 139-175
summary	This paper considers the problem of creative design, and in particular the role of a priori knowledge or "prototypes" in the design process. A design problem is characterised as one in which both the objectives and the means available for achieving these objectives are (of necessity) initially only poorly defined. Some observations concerning the nature of design process based on this characterisation are presented, and a model of the design process as a knowledge-based exploration task described. The role of prototypes in organising this knowledge is examined, and the widely accepted view that prototypes can form the principle source of knowledge for creativity in design is challenged. In a final section we outline the structural principles of a representation scheme which aims to overcome of these difficulties and describe a design support system which uses this scheme to support the design process.
series	other
last changed	2003/04/23 15:14

_id	c361
authors	Logan, Brian S.
year	1986
title	Representing the Structure of Design Problems
source	Computer-Aided Architectural Design Futures [CAAD Futures Conference Proceedings / ISBN 0-408-05300-3] Delft (The Netherlands), 18-19 September 1985, pp. 158-170
summary	In recent years several experimental CAD systems have emerged which, focus specifically on the structure of design problems rather than on solution generation or appraisal (Sussman and Steele, 1980; McCallum, 1982). However, the development of these systems has been hampered by the lack of an adequate theoretical basis. There is little or no argument as to what the statements comprising these models actually mean, or on the types of operations that should be provided. This chapter describes an attempt to develop a semantically adequate basis for a model of the structure of design problems and presents a representation of this model in formal logic.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	050112_logara-i
id	050112_logara-i
authors	Logara, Irena
year	2004
title	Finding of Form
source	ETH postgraduate studies final thesis, Zurich
summary	The intention of the thesis is to explore the spatial effect created when multiple forces interact in the formation of space. Instead of modeling the form, an internal generative logic is articulated which then produces a range of possibilities for the “fi nding of form”. As a first step creative relationships are being built between the objects in the space and different behaviors are assigned to them. This way, objects interact with each other rather than just occupying space. New fields of infl uence are added or new relations made, creating new variations. These interdependencies then become the structuring, organizing principle for the generation and transformation of form. The surface boundary of the whole deforms as fi elds of infl uence vary in their location and intensity. The insertion of the dimension of time gives the opportunity to follow and observe the deformation process and establishes a relation of continuity between the objects and the space.
series	thesis:MSc
last changed	2005/09/09 12:58

_id	ascaad2007_005
id	ascaad2007_005
authors	Loh, E.; N. Dawood and J. Dean
year	2007
title	Integration of 3D Tool with Environmental Impact Assessment (3D EIA)
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 51-66
summary	Environmental Impact Assessment (EIA) tools have been available for some years now and their function is predominantly to predict and identify the environmental impact of building projects. However EIA analysis is often done after the completion of the project or building and when it is too late to influence the design, materials or components to be used. Also, more than 80% of the design decisions that influence the whole life cycle of a building are made at the initial design phase. EIA does not receive the required attention. A new approach is suggested in this research to ensure that designers, clients and stakeholders have all of the relevant information needed at the outline design stage for the assessment of cost and environmental impact. The idea is that building owners and users will have the opportunity to minimise their operating costs from ‘cradle to cradle’. As energy resources reduce over the next few decades, the value of this research will increase and it is possible to foresee government legislation which drives building construction in this direction. By making environmental impact analysis readily linked to 3D products at the very early stage of the design process, the value of 3D technology will be enhanced significantly resulting in more use of the technology in the construction process. In this context, the objective of this paper is to introduce and explore approaches for developing integrated 3D- EIA, LCA (Life Cycle Analysis) and LCCA (Life Cycle Cost Analysis) and VR (Virtual Reality) tools and develop trade-off analysis to assist in the decision making process. To demonstrate initial results, a pilot case study in the UK is being developed.
series	ASCAAD
last changed	2008/01/21 22:00

_id	caadria2024_135
id	caadria2024_135
authors	Loh, Paul and Jahn, Gwyllim
year	2024
title	Learning Through Making Using Augmented Reality: A Case Study in Accelerated Learning
doi	https://doi.org/10.52842/conf.caadria.2024.3.099
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. 99–108
summary	While the use of AR in digital fabrication research has been well documented with numerous case studies, its implications for design pedagogy remain under-explored. This paper discusses using Augmented Reality (AR) technology in design pedagogy to accelerate learning through making. The research aims to demonstrate the process and mechanism of developing tacit knowledge for design research using AR through a case study project. It examines the use of research workflow and pseudo-code diagrams as methods for reflective practice. The installation used a combination of AR pipe bending, digitisation and Generative Artificial Intelligence (GAI) patternation techniques to construct a site-specific installation over a three-day workshop. The analysis highlights the roles and value of AR as probes and toolkits in creating prototypes, which formed the foundation for scaffolding design learning through making. The paper concludes with a discussion on reflective practice in understanding the relationship between critical reflection and design intention through research and learning facilitated by AR technology.
keywords	Design Pedagogy, Augmented Reality, Digital Fabrication, Prototyping, Artificial Intelligence, Reflective Practice
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	caadria2017_003
id	caadria2017_003
authors	Loh, Paul and Leggett, David
year	2017
title	Tools as Agents in Design and Making Processes
doi	https://doi.org/10.52842/conf.caadria.2017.799
source	P. Janssen, P. Loh, A. Raonic, M. A. Schnabel (eds.), Protocols, Flows, and Glitches - Proceedings of the 22nd CAADRIA Conference, Xi'an Jiaotong-Liverpool University, Suzhou, China, 5-8 April 2017, pp. 799-808
summary	The inversion of knowledge structure in electronics prototyping platform has allowed designers and architects to design and build reasonably stable mechatronic systems to aid novel material production; these new and hacked computer numeric controlled (CNC) machines are used to explore emerging material constructs and facilitate generative design processes. This paper examines tool making and questions the agentive capacity of such tools in design processes through a case study of a bespoke CNC machine which uses vacuum thermoforming techniques. Through understanding the agentive capacity of CNC tools, the authors suggest that the knowledge structure of tool making is distinctly different from fabrication workflow. This paper proposes an alternative means of understanding the capacity of CNC tools in the design and making process.
keywords	Digital Fabrication; Tool Making; Electronics Prototyping; Digital Workflow
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ecaade2018_234
id	ecaade2018_234
authors	Loh, Paul, Leggett, David and Prohasky, Daniel
year	2018
title	CNC Adjustable Mould to Eliminate Waste in Concrete Casting
doi	https://doi.org/10.52842/conf.ecaade.2018.1.735
source	Kepczynska-Walczak, A, Bialkowski, S (eds.), Computing for a better tomorrow - Proceedings of the 36th eCAADe Conference - Volume 1, Lodz University of Technology, Lodz, Poland, 19-21 September 2018, pp. 735-742
summary	Fabricating complex curvature in concrete panel typically required unique one-off formwork which is usually computer numerically controlled (CNC) milled, generating enormous waste as a by-product. What if, we can produce complex curvature in concrete with minimal or no immediate construction waste? This paper presents a novel machine designed by a team of architects and engineer to eliminate waste in concrete casting. Using a hyperbolic paraboloid geometric model, the machine produces variable shape using a single mould design reducing waste and cost to the casting process. The paper discussed the design framework of the system and its fabrication workflow. The outcome is digitally scanned and verified to satisfy industry standard. The paper concludes by reviewing the application of the system and highlighting the need for future research into digital fabrication and design that is less wasteful and waste conscious to better the process of constructing our built environment.
keywords	Digital fabrication; Concrete casting; Adjustable mould
series	eCAADe
email
last changed	2022/06/07 07:59

_id	caadria2019_407
id	caadria2019_407
authors	Loh, Paul, Leggett, David and Prohasky, Daniel
year	2019
title	Robotic Fabrication of Doubly Curved FaÃ§ade System - Constructing intelligence in the digital fabrication workflow
doi	https://doi.org/10.52842/conf.caadria.2019.2.521
source	M. Haeusler, M. A. Schnabel, T. Fukuda (eds.), Intelligent & Informed - Proceedings of the 24th CAADRIA Conference - Volume 2, Victoria University of Wellington, Wellington, New Zealand, 15-18 April 2019, pp. 521-530
summary	This paper presents a novel advance digital fabrication method to produce doubly curved concrete panel with no immediate waste as a facade system. Using a bespoke CNC adjustable mould frame system coupled with robotic trimming techniques, the research examines the streamlining of data within a cohesive fabrication workflow. The paper concludes by reviewing an integrated workflow that points towards a multifaceted system of design, engineering and advanced manufacturing that propel research to design application.
keywords	Digital Fabrication; Design workflow; Robotic
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2023_157
id	caadria2023_157
authors	Loh, Paul, Underwood, Jenny and Leggett, David
year	2023
title	3D Knitted Fabric Formwork for Concrete Casting
doi	https://doi.org/10.52842/conf.caadria.2023.2.119
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. 119–128
summary	The paper presents a novel process of fabricating concrete columns using 3-dimensional (3D) knitted fabric in conjunction with an industrial robotic arm acting as scaffolding. The research explores the feasibility of using wool as a biomaterial for fabricating formwork, thereby reducing construction waste and weight compared to traditional steel, fibreglass, or timber techniques. By examining the knit architecture in conjunction with experiments in slump admixture and tensile testing of the fabric formwork, the research developed several full-scale prototypes. The outcomes were scanned and analysed to understand the geometric deviation as a result of repeat usage of the fabric as formwork. The research demonstrates the resilience of the knitted wool fabric as formwork for concrete casting.
keywords	Fabric Formwork, 3D-Knit, Robotics, Concrete Casting
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	caadria2015_102
id	caadria2015_102
authors	Loh, Paul
year	2015
title	Articulated Timber Ground, Making Pavilion as Pedagogy
doi	https://doi.org/10.52842/conf.caadria.2015.023
source	Emerging Experience in Past, Present and Future of Digital Architecture, Proceedings of the 20th International Conference of the Association for Computer-Aided Architectural Design Research in Asia (CAADRIA 2015) / Daegu 20-22 May 2015, pp. 23-32
summary	Designing and making a pavilion within a studio setting has been undertaken by various educators and researchers as a valuable pedagogy in the past 10 years. It aims to construct a collaborative environment that allows students to develop an integrated approach to learning; through association, teamwork and creative collaboration. Usually the tacit knowledge applied and acquired through making, and the knowledge of design strategy and analysis are separated in the way they are taught; it is often difficult to integrate these within the same coursework which often leads to students using digital software and fabrication tools as problem solving devices. This paper looks at an integrated approach to learning computational design and digital fabrication through the making of a pavilion by a Master level design studio. The paper discusses the pedagogy of making through creative collaboration and integrated workflow. It focuses on the use of digital and physical prototypes as devices to stimulate an oscillating dialogue between problem solving and puzzle making; a counterpoint for students to develop and search for new knowledge in order to create personalised learning experience. The paper concludes with an examination on the limits of digital prototype when interfaced with physical environment.
keywords	Digital Fabrication; Collaborative Design; Design Workflow; Pedagogy, File to Production
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2016_755
id	caadria2016_755
authors	Loh, Paul; David Leggett and Timothy Cameron
year	2016
title	Smart assembly in digital fabrication: designing workflow
doi	https://doi.org/10.52842/conf.caadria.2016.755
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 755-764
summary	Digital fabrication project in academia has produced many grounds for experimentation. In recent years, techniques have also been tested extensively in practice within commercial project setting. This gives rise to an emerging breed of architectural practices whose work is increasingly centred on resolution of complex geometry to re- alizable projects. The resolution of parametrically driven design to production projects requires a different workflow, as often the com- pressed timeframe and budget requires the parametric model to cope with multiple streams of construction output as well as utilize the model in concurrent design processes. This paper examines a com- mercial project as case study to explore the abstraction, reduction and dissemination of information within a digital fabrication workflow. In this project, digital fabrication is deployed to reduce risk; mainly in manufacturing and its lead time. The research reveals how metadesign process at an early stage of the project can contribute to increase effi- ciency of the parametric model as well as delivering multiple streams of information for all the collaborators: architects, fabricators and builders. The team designed the assembly procedure into the paramet- ric workflow to facilitate off-site and on-site assembly. This is possi- ble through imbedding ‘smart’ detailing and structuring information with the workflow. The paper concludes by reflecting on the work- flow and asks if a metadesign driven fabrication workflow can create a more holistic approach to digital fabrication. The outcome of the case study is just one instance of the parametric machine that is devel- oped from an understanding of assembly process. This paper responds to the theme of continuous designing, through looking at digital fabri- cation as co-emergence of design procedure and practice.
keywords	Digital fabrication; construction; design workflow
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	caadria2016_651
id	caadria2016_651
authors	Loh, Paul; Jane. Burry and Malte Wagenfeld
year	2016
title	Workmanship of Risk: continuous designing in digital fabrication
doi	https://doi.org/10.52842/conf.caadria.2016.651
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 651-660
summary	Research projects exploring the realm of digital fabrication have shifted in recent years from developing novel techniques and outcomes to the development of tools that are part of the design pro- cess. The alignment of material systems with digital fabrication tech- nology and tooling processes have led to new terminology such as ‘digital craft’ and ‘digital making’; both terms imply a relationship be- tween craft and digital design and fabrication. Also implied is an inti- mate relationship between material production, digital tools and CNC fabrication techniques; critical ingredients in contemporary design processes. David Pye’s concept of ‘the workmanship of risk’ is used extensively in current discourse as a means to qualify digital fabrica- tion as craft production. This reading of digital fabrication as craft is limited because the word craft is used as an analogy to draw parallels between craft production and digital fabrication. There is a gap in the knowledge of what contemporary craft practice can bring to digital fabrication as a discourse or more precisely, the mechanism that al- lows digital fabrication projects to be read as a form of craft practice. This paper suggests that craft practice is rooted in the relationship be- tween material, tools and technique as an intricate workflow within a project; quantifying risk is just a means to assess this relationship. The workflow however can be considered as autopoietic in nature; it is both self-referential and self-making at the same time as continuously designing.
keywords	Digital craft; digital fabrication; systems theory
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ecaade2023_372
id	ecaade2023_372
authors	Loho, Roger, Stein, Max, Carl, Timo and Schein, Markus
year	2023
title	From Sheet to 3D Form
doi	https://doi.org/10.52842/conf.ecaade.2023.2.095
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 95–104
summary	This paper presents research into the development of a novel self-supporting, lightweight, and transparent polymer 3D-façade component for the integration of organic photovoltaic (OPV) modules into building facades. To explore the integration of organic photovoltaic modules into novel plastic sandwich material systems, using parametric design tools as well as solar and structural simulations were used. Physical prototypes and experiments informed and validated a digital tool chain. In the following sections, we use this research as a case study to reflect on the accessibility and interoperability of low-level visual programming tools and specialized FEM programs. Lastly, lessons learned and pitfalls are discussed and shared.
keywords	Design-Build, Parametric Modelling, Structural Simulation, Solar Simulation, Optimization, Lightweight Material Systems
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaadesigradi2019_408
id	ecaadesigradi2019_408
authors	Lohse, Theresa and Werner, Liss C.
year	2019
title	Semi-flexible Additive Manufacturing Materials for Modularization Purposes - A modular assembly proposal for a foam edge-based spatial framework
doi	https://doi.org/10.52842/conf.ecaade.2019.1.463
source	Sousa, JP, Xavier, JP and Castro Henriques, G (eds.), Architecture in the Age of the 4th Industrial Revolution - Proceedings of the 37th eCAADe and 23rd SIGraDi Conference - Volume 1, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 463-470
summary	This paper introduces a series of design and fabrication tests directed towards the use of bendable 3D printing materials in order to simplify a foam bubble-based geometry as a frame structure for modular assembly. The aspiration to reference a spittlebug's bubble cocoon in nature for a light installation in the urban context was integrated into a computational workflow conditioning light-weight, material-, and cost savings along with assembly-simplicity. Firstly, before elaborating on the project motivation and background in foam structures and applications of 3D-printed thermoplastic polyurethane (TPU) material, this paper describes the physical nature of bubble foams in its relevant aspects. Subsequently this is implemented into the parametric design process for an optimized foam structure with Grasshopper clarifying the need for flexible materials to enhance modular feasibility. Following, the additive manufacturing iterations of the digitally designed node components with TPU are presented and evaluated. Finally, after the test assembly of both components is depicted, this paper assesses the divergence between natural foams and the case study structure with respect to self-organizing behavior.
keywords	digital fabrication; 3D Printing; TPU flexibility ; modularity; optimization
series	eCAADeSIGraDi
email
last changed	2022/06/07 07:59

_id	ecaade2018_213
id	ecaade2018_213
authors	Lohse, Theresa, Fujii, Ryuta and Werner, Liss C.
year	2018
title	Multi-Dimensional Interface Based Spatial Adaption - A Prototype For A Multi-Sensory User Interface Employing Elastic Materials
doi	https://doi.org/10.52842/conf.ecaade.2018.2.169
source	Kepczynska-Walczak, A, Bialkowski, S (eds.), Computing for a better tomorrow - Proceedings of the 36th eCAADe Conference - Volume 2, Lodz University of Technology, Lodz, Poland, 19-21 September 2018, pp. 169-176
summary	Patten and Ishii (2000) discovered that people are employing more versatile strategies for spatial distribution when using a tangible user interface (TUI) as opposed to a graphics user interface (GUI) (Patten & Ishii, 2000). Besides, the generated information outputs of conventional two-dimensional interacting screens are currently almost entirely addressing the visual and acoustic senses but lacking in other sensory stimuli - such as haptic, body equilibrium and sense of gravity. With the experiment described here, the multi-dimensionality of both the input on the interface and the output of the human interaction will be challenged. This paper aims to introduce a method to a real world versatile three-dimensional interface actuating a simulated spatial environment that substantiates the more unconventional sensory perception mentioned above. A physical prototype using an Arduino will be assembled to test the feasibility of the structure.
keywords	spatial formation; virtual reality; tangible user interface; body equilibrium; physical computing
series	eCAADe
email
last changed	2022/06/07 07:59

_id	caadria2022_361
id	caadria2022_361
authors	Lok, Leslie and Bae, Jiyoon
year	2022
title	Timber De-Standardized 2.0 : Mixed Reality Visualizations and User Interface for Processing Irregular Timber
doi	https://doi.org/10.52842/conf.caadria.2022.2.121
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. 121-130
summary	Timber De-Standardized 2.0†is a mixed reality (MR) user interface (UI) that utilizes timber waste produced by manufacturing dimensional lumber, suggesting an expanded notion for "material usability‚ in timber construction. The expanded notion of designing with discarded logs not only requires new tools and technologies for cataloguing, structuring, and fabricating. It also relies on new methods and platforms for the visualization and design of these structures. As a†MR†UI,†Timber De-Standardized†enables professionals and non-professionals alike to seamlessly design with irregular logs and to create viable structural systems using an intuitive†MR†environment. In order to develop a†MR†environment with this level of competency, the research aims to finesse the visualization techniques in the immersive full-scale†3D†environment and to minimize the use of alternative 2D UI(s). The research methodology†focuses on†(1) cataloguing and extracting basic properties of various tree logs, (2)†refining mesh visualization for better user interaction, and†(3)†developing†the†MR†UI to increase user design agency with custom menu lists and operations.†This methodology will extend the usability of†MR†UI protocols to a broader audience while democratizing design and enabling the user as co-creator.
keywords	Irregular Tree Logs, Wood Construction, Augmented and Mixed Realities, Mixed Reality User Interface, Co-Creative Design, Digital representation and visualization, SDG 9, SDG 12, SDG 13
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	acadia22_432
id	acadia22_432
authors	Lok, Leslie; Bae, Jiyoon
year	2022
title	HoloWall
source	ACADIA 2022: Hybrids and Haecceities [Proceedings of the 42nd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-8-1]. University of Pennsylvania Stuart Weitzman School of Design. 27-29 October 2022. edited by M. Akbarzadeh, D. Aviv, H. Jamelle, and R. Stuart-Smith. 432-443.
summary	HoloWall is a wall assembly that integrates mixed reality (MR) protocols with nonuniformly sized lumber to develop a customized hollow-core cross-laminated timber (HCCLT). The performance-driven design workflow leverages the MR technology and tiling automation of nonuniform wood boards to guide material processing and fabrication of a customized HCCLT prototype. This paper proposes to expand the usage and the viability of customized HCCLT as a structural component. Upcycling locally salvaged wood elements, the prototype develops a material language of lamination that peels away in calibrated gradients to generate structural and visual porosity. By engaging with the computational environment and the physical making process through the MR workflow, users are able to explore an accessible design streamline.
series	ACADIA
type	paper
email
last changed	2024/02/06 14:04

_id	acadia21_222
id	acadia21_222
authors	Lok, Leslie; Samaniego, Asbiel; Spencer, Lawson
year	2021
title	Timber De-Standardized
doi	https://doi.org/10.52842/conf.acadia.2021.222
source	ACADIA 2021: Realignments: Toward Critical Computation [Proceedings of the 41st Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-986-08056-7]. Online and Global. 3-6 November 2021. edited by B. Bogosian, K. Dörfler, B. Farahi, J. Garcia del Castillo y López, J. Grant, V. Noel, S. Parascho, and J. Scott. 222-231.
summary	Timber De-Standardized is a framework that salvages irregular and regular shaped tree logs by utilizing a mixed reality (MR) interface for the design, fabrication, and assembly of a structurally viable tree log assembly. The process engages users through a direct, hands-on design approach to iteratively modify and design irregular geometry at full scale within an immersive MR environment without altering the original material. A digital archive of 3D scanned logs are the building elements from which users, designing in the MR environment, can digitally harvest (though slicing) and place the elements into a digitally constructed whole. The constructed whole is structurally analyzed and optimized through recursive feedback loops to preserve the user’s predetermined design. This iterative toggling between the physical and virtual emancipates the use of irregular tree log structures while informing and prioritizing the user’s design intent. To test this approach, a scaled prototype was developed and fabricated in MR. By creating a framework that links a holographic digital design to a physical catalog of material, the interactive workflow provides greater design agency to users as co-creators in processing material parts. This participation enables users to have a direct impact on the design of discretized tree logs that would otherwise have been discarded in standardized manufacturing. This paper presents an approach in which complex tree log structures can be made without the use of robotic fabrication tools. This workflow opens new opportunities for design in which users can freely configure structures with non-standardized elements within an intuitive MR environment.
series	ACADIA
type	paper
email
last changed	2023/10/22 12:06

_id	acadia20_176p
id	acadia20_176p
authors	Lok, Leslie; Zivkovic, Sasa
year	2020
title	Ashen Cabin
source	ACADIA 2020: Distributed Proximities / Volume II: Projects [Proceedings of the 40th Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-95253-6]. Online and Global. 24-30 October 2020. edited by M. Yablonina, A. Marcus, S. Doyle, M. del Campo, V. Ago, B. Slocum. 176-181
summary	Ashen Cabin, designed by HANNAH, is a small building 3D-printed from concrete and clothed in a robotically fabricated envelope made of irregular ash wood logs. From the ground up, digital design and fabrication technologies are intrinsic to the making of this architectural prototype, facilitating fundamentally new material methods, tectonic articulations, forms of construction, and architectural design languages. Ashen Cabin challenges preconceived notions about material standards in wood. The cabin utilizes wood infested by the Emerald Ash Borer (EAB) for its envelope, which, unfortunately, is widely considered as ‘waste’. At present, the invasive EAB threatens to eradicate most of the 8.7 billion ash trees in North America (USDA, 2019). Due to their challenging geometries, most infested ash trees cannot be processed by regular sawmills and are therefore regarded as unsuitable for construction. Infested and dying ash trees form an enormous and untapped material resource for sustainable wood construction. By implementing high precision 3D scanning and robotic fabrication, the project upcycles Emerald-Ash-Borer-infested ‘waste wood’ into an abundantly available, affordable, and morbidly sustainable building material for the Anthropocene. Using a KUKA KR200/2 with a custom 5hp band saw end effector at the Cornell Robotic Construction Laboratory (RCL), the research team can saw irregular tree logs into naturally curved boards of various and varying thicknesses. The boards are arrayed into interlocking SIP façade panels, and by adjusting the thickness of the bandsaw cut, the robotically carved timber boards can be assembled as complex single curvature surfaces or double-curvature surfaces. The undulating wooden surfaces accentuate the building’s program and yet remain reminiscent of the natural log geometry which they are derived from. The curvature of the wood is strategically deployed to highlight moments of architectural importance such as windows, entrances, roofs, canopies, or provide additional programmatic opportunities such as integrated shelving, desk space, or storage.
series	ACADIA
type	project
email
last changed	2021/10/26 08:08

_id	acadia22pr_154
id	acadia22pr_154
authors	Lok, Leslie; Zivkovic, Sasa
year	2022
title	UNLOG: A Deployable and Lightweight Timber Frame
source	ACADIA 2022: Hybrids and Haecceities [Projects Catalog of the 42nd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-7-4]. University of Pennsylvania Stuart Weitzman School of Design. 27-29 October 2022. edited by M. Akbarzadeh, D. Aviv, H. Jamelle, and R. Stuart-Smith. 154-159.
summary	Easily deployed and assembled, UNLOG unfolds several logs into an undulating and lightweight timber A-frame structure through robotic kerfing and bending-active kinematics. The installation provokes new methods of framing for timber construction.
series	ACADIA
type	project
email
last changed	2024/02/06 14:06

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