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	ascaad2006_paper20
id	ascaad2006_paper20
authors	Chougui, Ali
year	2006
title	The Digital Design Process: reflections on architectural design positions on complexity and CAAD
source	Computing in Architecture / Re-Thinking the Discourse: The Second International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2006), 25-27 April 2006, Sharjah, United Arab Emirates
summary	These instructions are intended to guide contributors to the Second Architecture is presently engaged in an impatient search for solutions to critical questions about the nature and the identity of the discipline, and digital technology is a key agent for prevailing innovations in architectural design. The problem of complexity underlies all design problems. With the advent of CAD however, Architect’s ability to truly represent complexity has increased considerably. Another source that provides information about dealing with complexity is architectural theory. As Rowe (1987) states, architectural theory constitutes “a corpus of principles that are agreed upon and therefore worthy of emulation”. Architectural theory often is a mixed reflection on the nature of architectural design, design processes, made in descriptive and prescriptive terms (see Kruft 1985). Complexity is obviously not a new issue in architectural theory. Since it is an inherent characteristic of design problems, it has been dealt with in many different ways throughout history. Contemporary architects incorporate the computer in their design process. They produce architecture that is generated by the use of particle systems, simulation software, animation software, but also the more standard modelling tools. The architects reflect on the impact of the computer in their theories, and display changes in style by using information modelling techniques that have become versatile enough to encompass the complexity of information in the architectural design process. In this way, architectural style and theory can provide directions to further develop CAD. Most notable is the acceptance of complexity as a given fact, not as a phenomenon to oppose in systems of organization, but as a structuring principle to begin with. No matter what information modelling paradigm is used, complex and huge amounts of information need to be processed by designers. A key aspect in the combination of CAD, complexity, and architectural design is the role of the design representation. The way the design is presented and perceived during the design process is instrumental to understanding the design task. More architects are trying to reformulate this working of the representation. The intention of this paper is to present and discuss the current state of the art in architectural design positions on complexity and CAAD, and to reflect in particular on the role of digital design representations in this discussion. We also try to investigate how complexity can be dealt with, by looking at architects, in particular their styles and theories. The way architects use digital media and graphic representations can be informative how units of information can be formed and used in the design process. A case study is a concrete architect’s design processes such as Peter Eisenman Rem Koolhaas, van Berkel, Lynn, and Franke gehry, who embrace complexity and make it a focus point in their design, Rather than viewing it as problematic issue, by using computer as an indispensable instrument in their approaches.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	8eb4
authors	Athithan, G. and Patnaik, L.M.
year	1987
title	Geometric Searching In Extended CSG Models : Application to Solid Modeling and Viewing
source	February, 1987. 30 p. : ill
summary	In this paper, the CSG representation scheme is augmented with the 'cartesian product.' The sweep method of generating solids is encompassed by this 'Extended CSG' formalism. The point inclusion problem encountered in the area of geometric searching in computational geometry is discussed in the context to solid models represented by 'extended CSG.' A simple algorithm to solve it that has a time complexity O(n), where n is the number of primitives, is presented. Allowing for preprocessing and extra storage, a second efficient algorithm, having a time complexity O(log n), is developed. The relevance of point inclusion problem in solid modelling techniques is indicated. An extended CSG based solid modeling method is proposed. A solution to the problem of hidden line removal, that uses the faster algorithm for the point inclusion problem, is also presented in the paper
keywords	point inclusion, computational geometry, data structures, solid modeling, CSG, computer graphics, hidden lines
series	CADline
last changed	2003/06/02 14:41

_id	3985
authors	Barton, G.E., Berrywick, R.C. and Ristad, E.S.
year	1987
title	Computational Complexity and Natural Language
source	MIT Press, Cambridge MA
summary	Computational Complexity and Natural Language heralds an entirely new way of looking at grammatical systems. It applies the recently developed computer science tool of complexity theory to the study of natural language
series	other
last changed	2003/04/23 15:14

_id	a820
authors	Bjerg, Kresten
year	1987
title	FULL-SCALE IN ANOTHER SENSE
source	Proceedings of the 1st European Full-Scale Workshop Conference / ISBN 87-88373-20-7 / Copenhagen (Denmark) 15-16 January 1987, pp. 31-35
summary	My point of departure is a long standing interest in close human communication. I have been much interested in the multiplicities of communicative levels between persons sharing daily life, e.g. spouses in a household. In the mid-sixties I was working with the first videotapings of marital dyads in a laboratory setting. The "interplay- analysis" which I developed at that time, however, was hampered by the lack of contextual naturalism in the setting. Since - working in the field of "altered states of consciousness" - I came to question the adequacy of studies of extra-ordinary states, in view of the lacking methodology for dealing even with the ranges of the variable ordinary states of mind over the 24-hour cycle in everyday life, and their potential relation to the micro-structure of the habitual ongoing activities of members of a household.
keywords	Full-scale Modeling, Model Simulation, Real Environments
series	other
type	normal paper
more	http://info.tuwien.ac.at/efa
last changed	2004/05/04 15:08

_id	ecaade2017_172
id	ecaade2017_172
authors	Brand?o, Filipe, Paio, Alexandra and Whitelaw, Christopher
year	2017
title	Mapping Mass Customization
doi	https://doi.org/10.52842/conf.ecaade.2017.2.417
source	Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 2, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 417-424
summary	Mass customization (MC) and personal fabrication (PF) are current relevant topics in architecture offices practice and schools design research. Architects are adopting information based design and production techniques as a response to architectural century challenges. However, is not clear how various authors used and transformed the concept in practice, research and industry after three decades since the MC term was introduced by Davis (1987). Therefore, is essential to map the most relevant works in the field in relation to production and design control. The paper presents some of the results of the ongoing study through an evolving map that aims to visualize relationships, layering complexity and revealing difference.
keywords	Mass Customization; Personal Fabrication; Housing; Map
series	eCAADe
email
last changed	2022/06/07 07:54

_id	8e02
authors	Brown, A.G.P. and Coenen, F.P.
year	2000
title	Spatial reasoning: improving computational efficiency
source	Automation in Construction 9 (4) (2000) pp. 361-367
summary	When spatial data is analysed the result is often very computer intensive: even by the standards of contemporary technologies, the machine power needed is great and the processing times significant. This is particularly so in 3-D and 4-D scenarios. What we describe here is a technique, which tackles this and associated problems. The technique is founded in the idea of quad-tesseral addressing; a technique, which was originally applied to the analysis of atomic structures. It is based on ideas concerning Hierarchical clustering developed in the 1960s and 1970s to improve data access time [G.M. Morton, A computer oriented geodetic database and a new technique on file sequencing, IBM Canada, 1996.], and on atomic isohedral (same shape) tiling strategies developed in the 1970s and 1980s concerned with group theory [B. Grunbaum, G.C. Shephard, Tilings and Patterns, Freeman, New York, 1987.]. The technique was first suggested as a suitable representation for GIS in the early 1980s when the two strands were brought together and a tesseral arithmetic applied [F.C. Holdroyd, The Geometry of Tiling Hierarchies, Ars Combanitoria 16B (1983) 211–244.; S.B.M. Bell, B.M. Diaz, F.C. Holroyd, M.J.J. Jackson, Spatially referenced methods of processing raster and vector data, Image and Vision Computing 1 (4) (1983) 211–220.; Diaz, S.B.M. Bell, Spatial Data Processing Using Tesseral Methods, Natural Environment Research Council, Swindon, 1986.]. Here, we describe how that technique can equally be applied to the analysis of environmental interaction with built forms. The way in which the technique deals with the problems described is first to linearise the three-dimensional (3-D) space being investigated. Then, the reasoning applied to that space is applied within the same environment as the definition of the problem data. We show, with an illustrative example, how the technique can be applied. The problem then remains of how to visualise the results of the analysis so undertaken. We show how this has been accomplished so that the 3-D space and the results are represented in a way which facilitates rapid interpretation of the analysis, which has been carried out.
series	journal paper
more	http://www.elsevier.com/locate/autcon
last changed	2003/05/15 21:22

_id	e861
authors	Burnham, G.T.
year	1987
title	Microcomputer-Based Expert System for the Design of Operational Military Airfields
source	Department of Architectural Science, University of Sydney
summary	This thesis develops a number of prototypical expert systems on a microcomputer to assist the military designer or engineer with facets of military operational airfield design. An existing expert system shell BUILD written in PROLOG-1 was altered to provide a more permanent record of the results of the system execution. The individual knowledge base includes production rules which conform to the BUILD syntax requirements. A number of additional clauses related to the knowledge base are written in PROLOG-1. The expert system consists of some 200 rules and an additional 36 clauses. The rules contain knowledge on soil characteristics pertinent to airfields, factors involved in calculating lengths of runways and factors for determining the effort involved in construction. The knowledge for the expert systems was gathered from a combination of civilian and military literature sources, the author's own experience, and discussions with military and air force personnel currently engaged in the design, planning and construction of these facilities. Development of these prototypical expert systems demonstrates the feasibility of implementing expert systems on microcomputers in this domain. Furthermore, it demonstrates their possible application to military engineering design particularly where the design process relies on a large amount of tabulated data and heuristic knowledge. It is this type of knowledge that is often used by the military engineer to find a timely problem solution when provided with a range of options. [Unpublished. -- CADLINE has abstract only.]
keywords	Applications, Military Engineering, Expert Systems, Design, Planning
series	thesis:MSc
last changed	2002/12/14 19:15

_id	ecaade2023_138
id	ecaade2023_138
authors	Crolla, Kristof and Wong, Nichol
year	2023
title	Catenary Wooden Roof Structures: Precedent knowledge for future algorithmic design and construction optimisation
doi	https://doi.org/10.52842/conf.ecaade.2023.1.611
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 1, Graz, 20-22 September 2023, pp. 611–620
summary	The timber industry is expanding, including construction wood product applications such as glue-laminated wood products (R. Sikkema et al., 2023). To boost further utilisation of engineered wood products in architecture, further development and optimisation of related tectonic systems is required. Integration of digital design technologies in this endeavour presents opportunities for a more performative and spatially diverse architecture production, even in construction contexts typified by limited means and/or resources. This paper reports on historic precedent case study research that informs an ongoing larger study focussing on novel algorithmic methods for the design and production of lightweight, large-span, catenary glulam roof structures. Given their structural operation in full tension, catenary-based roof structures substantially reduce material needs when compared with those relying on straight beams (Wong and Crolla, 2019). Yet, the manufacture of their non-standard geometries typically requires costly bespoke hardware setups, having resulted in recent projects trending away from the more spatially engaging geometric experiments of the second half of the 20th century. The study hypothesis that the evolutionary design optimisation of this tectonic system has the potential to re-open and expand its practically available design solution space. This paper covers the review of a range of built projects employing catenary glulam roof system, starting from seminal historic precedents like the Festival Hall for the Swiss National Exhibition EXPO 1964 (A. Lozeron, Swiss, 1964) and the Wilkhahn Pavilions (Frei Otto, Germany, 1987), to contemporary examples, including the Grandview Heights Aquatic Centre (HCMA Architecture + Design, Canada, 2016). It analysis their structural concept, geometric and spatial complexity, fabrication and assembly protocols, applied construction detailing solutions, and more, with as aim to identify methods, tools, techniques, and construction details that can be taken forward in future research aimed at minimising construction complexity. Findings from this precedent study form the basis for the evolutionary-algorithmic design and construction method development that is part of the larger study. By expanding the tectonic system’s practically applicable architecture design solution space and facilitating architects’ access to a low-tech producible, spatially versatile, lightweight, eco-friendly, wooden roof structure typology, this study contributes to environmentally sustainable building.
keywords	Precedent Studies, Light-weight architecture, Timber shell, Catenary, Algorithmic Optimisation, Glue-laminated timber
series	eCAADe
email
last changed	2023/12/10 10:49

_id	2ac0
authors	Galle, Per
year	1987
title	A Formalized Concept of Sketching in Automated Floor Plan Design
source	177 p. 1987. DIKO Research Report No.87/3
summary	CADLINE has abstract only. Automated floor plan design, though originally motivated by the difficulties encountered by architects manually designing building layouts, raise several questions that may be of relevance to related application areas as well. e.g. design of electronic circuitry. One such question is, 'how do we come from a given set of constraints on size and placement of rooms (components) to a set of floor plans (circuit layouts) that satisfy these constraints?' In manual architectural design, sketches are used as an intermediate step. The present work is a study of a number of formalizations of the sketch concept which have been or could be used in computer- generation of architectural floor plans. A particular type of sketch, called the 'delta-derivative', is suggested and developed. The delta-derivative of a desired solution plan is an approximation of that solution plan and usually several other similar or 'equivalent' solutions. The idea is to generate sketches ('abstract' plans) before solutions ('concrete' plans), because they are simpler to compute, weeding out sketches that are not 'promising', and trying to refine the remaining sketches into solutions proper, thus limiting the amount of combinatorial search. Several abstraction levels of sketches may be used in this process. However, constraints as specified by the user of an automated design system are assumed to apply to the solutions; therefore a major theoretical problem which is addressed in the report is the derivation of sketch-level constraints that define which sketches to be generated. A comprehensive floor plan design system based on these ideas has been implemented, and empirical results are reported which confirms certain predicted advantages of delta-derivatives but also shows that the sketch-level constraints based on the developed theory are too weak if used alone; they allow generation of too many sketches which cannot possibly be refined into solutions. The report finally conjectures a solution to this problem
keywords	CAD, planning, architecture, floor plans, design, combinatorics, programming, abstraction
series	CADline
last changed	1999/02/12 15:08

_id	c890
authors	Hutchinson, Peter J., Rosenman, Michael A. and Gero, John S.
year	1987
title	RETWALL : An Expert System for the Selection and Preliminary Design of Earth Retaining Structures
source	Knowledge Based Systems. 1987. vol. 1: pp. 11-23
summary	This paper describes an expert system for the selection and preliminary design of engineering earth retaining structures. It describes the domain and how the knowledge was acquired from textbooks, questionnaires and interviews. Details of the implementation of RETWALL using the expert system shell BUILD are provided as is a full script of a session
keywords	expert systems, knowledge, representation, engineering, applications,knowledge acquisition, software
series	CADline
email
last changed	2003/06/02 13:58

_id	ecaaderis2023_45
id	ecaaderis2023_45
authors	Morton, David, Ahmed, Tarek MF and Humphery, Richard
year	2023
title	BIM and Teaching in Architecture: Current thinking and approaches
source	De Luca, F, Lykouras, I and Wurzer, G (eds.), Proceedings of the 9th eCAADe Regional International Symposium, TalTech, 15 - 16 June 2023, pp. 105–115
summary	Increasing use of BIM has represented a continuing shift in traditional assumptions on how we navigate the design process. BIM is affording the student the ability to gain a greater understanding of their design ideas via the exploration of scale, spatial organisation and structure, amongst many other design layers, in increasing levels of detail, at the same point in the design process. Architectural education is at a delayed tipping point where architectural students are increasingly looking towards BIM to streamline their design process drawn by the production of realistic visualisation, but with a lack of knowledge and skill in its application. With a lack of guidance and understanding around the application of BIM, the use of BIM in this manner overlooks the potential of BIM to construct and test virtual simulations of proposed schemes, to support design enquiry. A historical concern for the pedagogy constructed around the students’ design process is the application of methods and techniques that support the progression through the design process, (Ambrose, 2014; dash mei & Safari, 2018). This study examines the design process of architectural students and the interaction between analogue and digital methods used in design. These primary modes of communication, offer the opportunity to query the roles and rules of traditional architectural conventions around ‘problem finding’ and ‘problem solving’, challenging the ‘traditional’ design process examined by pioneers like Bruner (1966) and Schon (1987). These approaches are distilled from the findings of the study and presented as guidance to those teaching in architectural aBIMemia to align pedagogic goals to methods of abstraction in this new era of design education reconsidering digital methods in design.
keywords	BIM, BIM, Design Process, Architecture, Learning
series	eCAADe
email
last changed	2024/02/05 14:28

_id	404e
authors	Oksala , T.
year	1988
title	Logical Models for Rule-based CAAD
source	CAAD futures ‘87 [Conference Proceedings / ISBN 0-444-42916-6] Eindhoven (The Netherlands), 20-22 May 1987, pp. 107-116
summary	The aim of this paper is to present the basic results of a theoretic approach to represent architectural individual forms in CAD systems. From the point of view of design methodology and problem solving these descriptions might be conceived' as parts of possible environments satisfying the laws of some design theory in logical sense. This paper describes results in a series of logical studies towards rule and knowledge based systems for design automation. The effective use of programming languages and computers as design aids in architecture presupposes certain capabilities to articulate built environment logically. The use of graphic languages in the description of environmental items e.g. buildings might be theoretically mastered by formal production systems including linguistic, geometric, and spatio-material generation. The combination of the power of formal mechanisms and logical individual calculus offers suitable framework to generate arbitrary e.g. free spatial compositions as types or unique solutions. In this frame it is natural to represent in a coherent way very complex hierarchical parsing of buildings in explicit form as needed in computer implementations. In order to simulate real design work the individual configurations of possible built forms should be designed to satisfy known rules. In the preliminary stage partial solutions to design problems may be discussed in mathematical terms using frameworks like lattices, graphs, or group theoretical considerations of structural, functional, and visual organization of buildings. The capability to produce mathematically sophisticated geometric structures allows us to generalize the approach further. The theoretical design knowhow in architecture can be partly translated in to some logic and represented in a knowledge base. These rules are used as selection criteria for geometric design candidates in the sense of logical model theory and mathematical optimization. The economy of the system can be developed by using suitable conduct mechanisms familiar e.g. from logic programming. The semantics of logic offers a frame to consider computer assisted and formal generation in design. A number of semantic and pragmatic problems, however, remain to be solved. In any case conceptual analyses based on logic are applicable in order to rationally reconstruct architectural goals contributing to the quality of environmental design, which should be the main goal in the development of design systems in near future.
series	CAAD Futures
last changed	1999/04/03 17:58

_id	2622
authors	Schmitt, G.
year	1988
title	Expert Systems and Interactive Fractal Generators in Design and Evaluation
source	CAAD futures ‘87 [Conference Proceedings / ISBN 0-444-42916-6] Eindhoven (The Netherlands), 20-22 May 1987, pp. 91-106
summary	Microcomputer based interactive programmable drafting programs and analysis packages are setting new standards for design support, systems in architectural offices. These programs allow the representation and performance simulation of design proposals with one tool, but they lack the ability to represent knowledge concerning relations between design and artifact. While they can expediate the traditional design and analysis process, they do not fundamentally improve it. We shall describe three computationally related approaches which could be a step towards a necessary paradigm change in developing design software. These approaches deal with expert design generators and evaluators, function oriented programming, and fractal design machines.
series	CAAD Futures
email
last changed	2003/05/16 20:58

_id	8c73
authors	Van Wyk, C.G. Skip
year	1987
title	CAAD Usage: Now and When At OSU
doi	https://doi.org/10.52842/conf.acadia.1987.121
source	Integrating Computers into the Architectural Curriculum [ACADIA Conference Proceedings] Raleigh (North Carolina / USA) 1987, pp. 121-134
summary	In February of this year the Department of Architecture at The Ohio State University began a study to determine existing and long-term needs and expectations regarding the use of computers in teaching, research, administration, and service. The results of the study are to aid in two broad planning objectives: (1) facility, hardware, and software acquisition; and (2) curriculum enhancement, faculty and staff development, and support services (i.e., consultants, lab monitors, etc.). An interview technique was developed to address three main concerns: (1) how computers are and should be utilized in areas--i.e., research, course preparation, lecture delivery, computer-aided instruction, grading and monitoring, and student exercises; (2) what kinds of applications are and should be utilized--i.e., word processing, statistics, graphics, drafting, modeling, audio-visual, database, etc.; and (3) what problems or concerns stand in the way of achieving the desired levels of computer usage. The twenty-three full-time faculty surveyed (96% participation) represent 65 curriculum courses varying in format from design studio and labs to lecture. This paper outlines the methods of the study and presents the findings via graphs of current and desired computer usage by both area and application along with a graphic summary of statistics and trends. Also presented are a summary of root problems and concerns noted during the interview process and conclusions and limitations of study.
series	ACADIA
email
last changed	2022/06/07 07:58

_id	8e6f
authors	Wilcox, R. Peter
year	1987
title	Interactive Color Theory - Education, Research and Practice: The Development of CoMoS3
doi	https://doi.org/10.52842/conf.acadia.1987.077
source	Integrating Computers into the Architectural Curriculum [ACADIA Conference Proceedings] Raleigh (North Carolina / USA) 1987, pp. 77-86
summary	This paper describes one way to integrate the computer into architectural color research, teaching, and practice. In my work with the Architecture and Interior Architecture programs at the University of Oregon, I am currently developing software exploiting the full three-dimensional and dynamic nature of the Munsell color organization, thereby making it easier for students to learn and apply color theory. CoMoS3 provides an interactive means of understanding and exploring color relationships from within the Munsell system of organization, employing the Munsell harmonies essentially as both a theoretical datum and an interactive "mentor" for color studies. In describing CoMoS3, Color Modelling System in 3D, this paper proposes a method for the integration of computers into one of the more creative and subjective aspects of architectural education and practice. The paper also discusses the problems inherent in this approach and suggests directions for future work.
series	ACADIA
email
last changed	2022/06/07 07:57

_id	c1c6
authors	Woolsey, Ch., Hooper, S.K. and Curtis, G.
year	1987
title	VizAbility
source	PWS Publishing, San Francisco
summary	The handbook provides you with a broad conceptual overview of visual thinking by guiding you through the interactive experiences of VizAbility(tm). It parallels the structure of the CD-ROM, providing a context for your reflections and comments on these experiences and for analysis of their implications. Although the VizAbility(tm) Handbook can be read on its own and still provide valuable insight, it is designed to interact with the VizAbility(tm) CD-ROM. The intent is to integrate the three components so as to encourage you to move fluidly between the different media to explore, experience, and extend your visual abilities.
series	other
last changed	2003/04/23 15:14

_id	ecaade2017_173
id	ecaade2017_173
authors	Buš, Peter, Hess, Tanja, Treyer, Lukas, Knecht, Katja and Lu, Hangxin
year	2017
title	On-site participation linking idea sketches and information technologies - User-driven Customised Environments
doi	https://doi.org/10.52842/conf.ecaade.2017.1.543
source	Fioravanti, A, Cursi, S, Elahmar, S, Gargaro, S, Loffreda, G, Novembri, G, Trento, A (eds.), ShoCK! - Sharing Computational Knowledge! - Proceedings of the 35th eCAADe Conference - Volume 1, Sapienza University of Rome, Rome, Italy, 20-22 September 2017, pp. 543-550
summary	The paper introduces the methodology related to the topic of citizen-driven urban design and revises the idea of on-site participation of end-users, which could prospectively lead to customisation of architectural and urban space in a full-scale. The research in the first phase addresses the engagement of information technologies used for idea sketching in participatory design workshop related to local urban issues in the city of Chur in Switzerland by means of the Skity tool, the sketching on-line platform running on all devices. Skity allows user, which can be individual citizens or a community, to sketch, build, and adapt their ideas for the improvement of an urban locality. The participant is the expert of the locality because he or she lives in this place every day. The content of this paper is focused on the participatory design research project conducted as a study at the ETH Zürich and the Hochschule für Technik und Wirtschaft HTW in Chur in collaboration with Future Cities Laboratory in Singapore, mainly concentrated on the first step of the methodological approach introduced here.
keywords	responsive cities; urban mass-customisation; idea sketching; ideation; on-site participation; citizen design science
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2023_92
id	ecaade2023_92
authors	Buš, Peter, Russell, Peter, Curry, Terrence and Wu, Chaoyun
year	2023
title	A Parametric Tolerance Model for Numerically Controlled Digital Fabrication: Adaptation of kit-of-parts components for a pre-manufactured WikiHouse scenario
doi	https://doi.org/10.52842/conf.ecaade.2023.1.551
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 1, Graz, 20-22 September 2023, pp. 551–558
summary	Numerically controlled digital fabrication (NC) encompasses precise toolpaths generated according to the predefined geometry, material characteristics, type of machining processes, and processing tools. This includes a definition of tolerances, necessary for a successful and smooth assembly process when dealing with component-driven assembly after the components were fabricated. However, the prototyping and assembly practice often encounters a variety of issues in real fabrication and assembly scenarios: humidity of the environment, specific material properties, such as the ability of the stock material to change its dimensions according to the unexpected environmental conditions, unexpected different dimensions of the stock material delivered from a factory or a producer, variety of fabrication producers with different machine types, or unique conditions of a production machine. Therefore, there is a need to adapt the geometry of components to different humidity scenarios and combinations of stock material properties or specific machine or production-related processes, which influence the dimensions, and the tolerances embedded into the process of toolpath generation. To address these, we introduce an adaptive parametric model. This has been created as an open-source and open-access algorithm within the Grasshopper environment to easily modify the dimensions of tolerances according to specific and unexpected conditions. The paper also elaborates on and discusses the limitations of such an approach and the scalability and extendibility of the proposed tolerance engine.
keywords	tolerance model, digital manufacturing, intelligent kit-of-parts assemblies
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2022_201
id	ecaade2022_201
authors	Buš, Peter, Sridhar, Nivedita, Zhao, Yige, Yang, Chia-Wei, Chen, Chenrui and Canga, Darwin
year	2022
title	Kit-of-Parts Fabrication and Construction Strategy of Timber Roof Structure - Digital design-to-production workflow for self-builders
doi	https://doi.org/10.52842/conf.ecaade.2022.1.449
source	Pak, B, Wurzer, G and Stouffs, R (eds.), Co-creating the Future: Inclusion in and through Design - Proceedings of the 40th Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2022) - Volume 1, Ghent, 13-16 September 2022, pp. 449–458
summary	This project builds upon a premise that complex double-curved geometries can be built out of simple, planar, and straight elements. As such, it is possible to simplify manufacturing, construction, and assembly processes, as well as decrease the delivery time and cost. When operating with planar and simple components in the form of Kit-of- Parts there is an assumption that such components can be easily used by self-builders, not necessarily building experts. This can empower participatory activities leading to a more sustainable and resilient engaged community. This hypothesis is evaluated through the process of design for manufacture and assembly project of the timber shell, supported by proposed advanced computational design-to-production workflow utilising digital fabrication technologies such as CNC machining and robotic milling. The assembled and erected structure is evaluated in the scope of constructability, deliverability, and operability. Therefore, the focus of this project is to test, observe, experiment with, and learn from those aspects from the perspective of a fabricator, maker, and self-builder of the double-curved timber roof structure, while operating with smaller-scale components and smaller sub-assemblies, convenient for hands-on operations. The paper also discusses the limitations of such an approach.
keywords	Design-to-Production Workflow, Robotic Digital Fabrication, Self-Builders, Structural Performance, Advanced Labelling
series	eCAADe
email
last changed	2024/04/22 07:10

_id	ecaadesigradi2019_381
id	ecaadesigradi2019_381
authors	Buš, Peter
year	2019
title	Large-scale Prototyping Utilising Technologies and Participation - On-demand and Crowd-driven Urban Scenarios
doi	https://doi.org/10.52842/conf.ecaade.2019.2.847
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 2, University of Porto, Porto, Portugal, 11-13 September 2019, pp. 847-854
summary	The paper theorises and elaborates the idea of crowd-driven assemblies for flexible and adaptive constructions utilising automatic technologies and participatory activities within the context of twenty-first century cities. As economic and technological movements and shifts in society and cultures are present and ongoing, the building technology needs to incorporate human inputs following the aspects of customisation to build adaptive architectural and urban scenarios based on immediate decisions made according to local conditions or specific spatial demands. In particular, the paper focuses on large-scale prototyping for urban applications along with on-site interactions between humans and automatic building technologies to create on-demand spatial scenarios. It discusses the current precedents in research and practice and speculates future directions to be taken in creation, development or customisation of contemporary and future cities based on participatory and crowd-driven building activities. The main aim of this theoretical overview is to offer a more comprehensive understanding of the relations between technology and humans in the context of reactive and responsive built environments.
keywords	large-scale urban prototyping; on-site participation; human-machine interaction; intelligent cities; responsive cities; urban autopoiesis
series	eCAADeSIGraDi
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last changed	2022/06/07 07:54

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