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	ecaade2022_51
id	ecaade2022_51
authors	Lüling, Claudia and Carl, Timo
year	2022
title	Fuzzy 3D Fabrics & Precise 3D Printing - Combining research with design-build investigations
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. 67–76
doi	https://doi.org/10.52842/conf.ecaade.2022.1.067
summary	We present a synergetic combination of two previously separate process technologies to create novel lightweight structures. 3D textiles and 3D printing. We will outline the development of a novel material system that consisted of flexible and foldable 3D textiles that are combined with stiff, linear 3D printed materials. Our aim is to produce material-reduced lightweight elements for building applications with an extended functionality and recyclability. Within an ongoing research project (6dTEX), we explore a mono-material system, which uses the same base materials for both the filament for 3D printing and the yarn of the fabrication of the 3D textiles. Based on preliminary 3D printing tests on flat textiles key process parameters were identified. Expertise has been established for 3D printing on textiles as well as for using printable recycled polyester materials (PES textile and PETG filament. Lastly for 3D printing on non-combustible material (alkali-resistant (AR) glass textiles and for 3D concrete printing (3DCP). The described process- knowledge facilitates textile architectures with an extended vocabulary, ranging from flat to single curved and folded topologies. Whereas the foundations are laid in the research project on a meso scale, we also extended our explorations into an architectural macro scale. For this, we used a more speculative design-build studio that was based on a more loose combination of 3D textiles and 3D printed elements. Lastly, we will discuss, how this first architectural application beneficially informed the research project.
keywords	Material-Based Design, Additive Manufacturing, Design-Build, Parametric Modelling, Form-Finding, Co-Creation, Lightweight Structures, Single-Origin Composites, Space Fabrics
series	eCAADe
email
last changed	2024/04/22 07:10

_id	acadia22_58
id	acadia22_58
authors	Anton, Ana; Skevaki, Eleni; Bischof, Patrick; Reiter, Lex; Dillenburger, Benjamin
year	2022
title	Column-Slab Interfaces for 3D Concrete Printing
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. 58-67.
summary	3D Concrete Printing (3DCP) currently dominates the scene of digital fabrication with concrete. 3DCP can be utilized on-site or in prefabrication setups. While prefabrication with 3DCP allows for more complex construction elements, it also requires the design for connections and assembly. In the context of prefabrication using 3DCP, this paper illustrates the state of research in the design, construction, and assembly of 3D printed components. It proposes segmentation and fabrication strategies to produce horizontal and vertical structural members of a column-slab building system following the typology of mushroom slabs.
series	ACADIA
type	paper
email
last changed	2024/02/06 14:00

_id	caadria2022_357
id	caadria2022_357
authors	Bedarf, Patrick, Szabo, Anna, Zanini, Michele, Heusi, Alex and Dillenburger, Benjamin
year	2022
title	Robotic 3D Printing of Mineral Foam for a Lightweight Composite Concrete Slab
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. 61-70
doi	https://doi.org/10.52842/conf.caadria.2022.2.061
summary	This paper presents the design and fabrication of a lightweight composite concrete slab prototype using 3D printing (3DP) of mineral foams. Conventionally, concrete slabs are standardized monolithic elements that are responsible for a large share of used materials and dead weight in concrete framed buildings. Optimized slab designs require less material at the expense of increasing the formwork complexity, required labour, and costs. To address these challenges, foam 3D printing (F3DP) can be used in construction as demonstrated in previous studies for lightweight facade elements. The work in this paper expands this research and uses F3DP to fabricate the freeform stay-in-place formwork components for a material-efficient lightweight ribbed concrete slab with a footprint of 2 x 1.3 m. For this advancement in scale, the robotic fabrication and material processing setup is refined and computational design strategies for the generation of advanced toolpaths developed. The presented composite of hardened mineral foam and fibre-reinforced ultra-high-performance concrete shows how custom geometries can be efficiently fabricated for geometrically complex formwork. The prototype demonstrates that optimized slabs could save up to 72% of total concrete volume and 70% weight. The discussion of results and challenges in this study provides a valuable outlook on the viability of this novel fabrication technique to foster a sustainable and resourceful future construction culture.
keywords	robotic 3d-printing, mineral foam, stay-in-place formwork, concrete composite, SDG 12
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	ijac202220103
id	ijac202220103
authors	Jauk, Julian; Lukas Gosch, Hana Vašatko, Ingolf Christian, Anita Klaus, Milena Stavric
year	2022
title	MyCera. Application of mycelial growth within digitally manufactured clay structures
source	International Journal of Architectural Computing 2022, Vol. 20 - no. 1, pp. 31–40
summary	In this paper we will demonstrate a digital workflow that includes a living material such as mycelium and makes the creation of structural designs possible. Our interdisciplinary research combines digital manufacturing with the use of mycelial growth, which enables fibre connections on a microscopic scale. We developed a structure that uses material informed toolpaths for paste-based extrusion, which are built on the foundation of experiments that compare material properties and growth observations. Subsequently, the tensile strength of 3D printed unfired clay elements was increased by using mycelium as an intelligently oriented fibre reinforcement. Assembling clay-mycelium composites in a living state allows force-transmitting connections within the structure. This composite has exhibited structural properties that open up the possibility of its implementation in the building industry. It allows the design and efficient manufacturing of lightweight ceramic constructions customised to this composite, which would not have been possible using conventional ce- ramics fabrication methods.
keywords	Clay, Mycelium, 3D Printing, Growth, Bio-welding
series	journal
last changed	2024/04/17 14:29

_id	cdrf2022_514
id	cdrf2022_514
authors	Jiaxiang Luo, Tianyi Gao, and Philip F. Yuan
year	2022
title	Fabrication of Reinforced 3D Concrete Printing Formwork
source	Proceedings of the 2022 DigitalFUTURES The 4st International Conference on Computational Design and Robotic Fabrication (CDRF 2022)
doi	https://doi.org/https://doi.org/10.1007/978-981-19-8637-6_44
summary	In recent years, the emerging 3D printing concrete technology has been proved to be an effective and intelligent strategy compared with conventional casting concrete construction. Due to the principle of additive manufacturing strategy, this concrete extrusion technique creates great opportunities for designing freeform geometries for surface decoration since this material has a promising performance of high compressive strength, low deformation, and excellent durability. However, the structure behavior is usually questioned, defined by the thickness and printing path. At the same time, the experiments for using 3D printing elements for structural and functional parts are still insufficient. Little investigation has been made into developing reinforcement strategies compatible with 3D printing concrete. In fact, conventional formwork and easy-to-install reinforcement support structures have various advantages in terms of labor costs but can hardly be reused. Thus, using 3D concrete printing as formwork for projects in different scales is an effective solution in the mass customized prefabrication era. Considering large-scale projects, the demand to provide concrete formwork with a proper reinforcement strategy for better toughness, flexibility, and strength is necessary. In this paper, we proposed different off-site reinforced 3D printing concrete strategies and evaluated them from time and material cost, deviation, and accessibility of fabrication.
series	cdrf
email
last changed	2024/05/29 14:03

_id	ecaade2022_384
id	ecaade2022_384
authors	Naboni, Roberto, Breseghello, Luca and Sanin, Sandro
year	2022
title	Environment-Aware 3D Concrete Printing through Robot-Vision
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 2, Ghent, 13-16 September 2022, pp. 409–418
doi	https://doi.org/10.52842/conf.ecaade.2022.2.409
summary	In the 2020s, large scale 3D concrete printing (3DCP) is one of the most important areas of development for research and industry in construction automation. However, the available technology fails to adapt to the complexity of a real construction site and building process, oversimplifying design, production, and products to fit the current state of technology. We hypothesise that by equipping printing machinery with sensing devices and adaptive design algorithms we can radically expand the range of applications and effectiveness of 3DCP. In this paper we prove this concept through a full-scale design-to- fabrication experiment, SENS-ENV, consisting of three main phases: (i) we equip and calibrate an existing robotic setup for 3DCP with a camera which collects geometric data; (ii) building upon the collected information, we use environment-aware generative design algorithms to conceive a toolpath design tailored for the specific environment with a quasi-real-time workflow; (iii) we successfully prove this approach with a number of fabrication test-elements printed on unknown environment configurations and by monitoring the fabrication process to apply printing corrections. The paper describes the implementation and the successful experiments in terms of technology setup, process development, and documenting the outcomes. SENS-ENV opens a new agenda for context-aware autonomous additive construction robots.
keywords	3D Concrete Printing, Robot Vision, Environment Mapping, Adaptive Design
series	eCAADe
email
last changed	2024/04/22 07:10

_id	ascaad2023_042
id	ascaad2023_042
authors	Žigmundová, Viktória; Suchánková, Kateøina; Stretavská, Antónia; Míèa, Jakub; Rayne, Taylor; Tsikoliya, Shota ; ,
year	2023
title	Additive Manufacturing of Mycelium Composites for Sustainable Landscape Architecture
source	C+++: Computation, Culture, and Context – Proceedings of the 11th International Conference of the Arab Society for Computation in Architecture, Art and Design (ASCAAD), University of Petra, Amman, Jordan [Hybrid Conference] 7-9 November 2023, pp. 863-877.
summary	This study explores the potential of mycelium composites as a sustainable and eco-friendly material for landscape architecture in the context of today's global climate and environmental crisis. Mycelium, the vegetative part of fungi, has shown promising properties such as acoustic and thermal insulation, biodegradability, and environmental performance (Vasatko et al., 2022). The central remit of this research is in proposing bespoke computational and robotic fabrication methods and workflows for investigating the performance of mycelial materials and observing their properties and growth response. Taken together, the topic of this paper is to illustrate the application and composition of such fabrication techniques as an integrated multi-material system, capable of combining the complex, organic relationships between clay, lignocellulosic substrate, and fungi with a focus on the potential of such composite materials for implementation within the built environment. Outlined here are the processes and procedures essential to this multi-material fabrication framework, including a detailed account of a series of substrate material mixtures and printed clay scaffold geometries, both of which exhibit properties informed by the material synthesis and fabrication process. We foremost propose the strategic mixing of different substrate types to be 3D printed with clay as a strategy for probing the optimization of mycelial overgrowth and binding to the 3D printed geometries. Subsequently, we proceed in detailing the study’s approach and process of 3D printing the mixtures of recycled material, drying the geometry, and sterilizing the final design once inoculated with the mycelium. Ultimately, we motivate this research in pursuit of further understanding of mycelium's material and mycoremediation capacities in service of more environmentally responsive and responsible architectural applications.
series	ASCAAD
email
last changed	2024/02/13 14:34

_id	sigradi2022_243
id	sigradi2022_243
authors	Banda, Pablo; Carrasco-Pérez, Patricio; García-Alvarado, Rodrigo; Munoz-Sanguinetti, Claudia
year	2022
title	Planning & Design Platform of Buildings By Robotic Additive Manufacturing for Construction.
source	Herrera, PC, Dreifuss-Serrano, C, Gómez, P, Arris-Calderon, LF, Critical Appropriations - Proceedings of the XXVI Conference of the Iberoamerican Society of Digital Graphics (SIGraDi 2022), Universidad Peruana de Ciencias Aplicadas, Lima, 7-11 November 2022 , pp. 421–430
summary	The following paper describes and comments a construction planning platform for the Additive Manufacturing of wall modules, as a set of design and planning actions that interwove robotic, material capacities and spatial characteristics. Goal here is to take semi-conventional strategy and augment the algorithmic process for design and knowledge acquisition regarding design oriented to 3D Printing Construction.
keywords	Additive Manufacturing for Construction, 3D Printing, Digital Fabrication, Parametric Design
series	SIGraDi
email
last changed	2023/05/16 16:56

_id	ecaade2022_312
id	ecaade2022_312
authors	Bhagat, Puja and Gursoy, Benay
year	2022
title	Stretch – 3D Print – Release: Formal descriptions of shape-change in 3D printed shapes on stretched fabrics
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. 301–310
doi	https://doi.org/10.52842/conf.ecaade.2022.1.301
summary	Researchers have previously explored 3D printing 2D shapes on stretched fabrics using plastic filaments. When released, the 3D printed plastic constrains the fabric to take a 3D form. By leveraging the material properties and resultant tension between the rigid plastic and pliable fabric, it is possible to create 3D forms which would otherwise be difficult to construct with traditional fabrication techniques. Multiple factors are in play in this shape-change. Therefore, it is often difficult to anticipate the 3D form that will emerge when the stretched fabric is released. In this paper, we present our systematic bottom-up explorations on the effects of various parameters on shape-change and formalize our findings as rules. These rules help to visualize the interrelations between (abstract) shapes designed for 3D printing, (material) shapes 3D printed on stretched fabric, and (material) shapes that emerge when the fabric is released. The rules also help to explore design possibilities with this technique in a more controlled, communicable, and repeatable way. We also present a series of vaulted forms that we generated using these rules and by stretching - 3D printing - releasing the fabric.
keywords	Material Computing, Shape-change, Adaptive Architecture, Digital Fabrication, 3D Printing on Textiles
series	eCAADe
email
last changed	2024/04/22 07:10

_id	caadria2022_245
id	caadria2022_245
authors	Chai, Hua, Guo, Zhixian, Wagner, Hans Jakob, Stark, Tim, Menges, Achim and Yuan, Philip F.
year	2022
title	In-Situ Robotic Fabrication of Spatial Glulam Structures
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. 41-50
doi	https://doi.org/10.52842/conf.caadria.2022.2.041
summary	While current approaches in timber construction stress the advantages of off-site prefabrication, glued laminated timber(glulam) structures is limited to the constraints of standardized, prefabricated mostly linear elements, which also lends itself only to building typologies that offer an increased level of standardization and regularity. The design freedom of timber structures is incomparable to that of reinforced concrete structures, which mostly gains from the in-situ fabrication process. An in-situ robotic timber fabrication platform allows the on-site construction of glulam structures with highly differentiated networks of beams composed of robotically assembled discrete linear elements. Based on the possibilities of such mobile robotic fabrication process, this paper explores novel architectural typologies of spatial glulam structures. The research is conducted from several aspects including joint tectonics, design method, and robotic fabrication process. A large-scale pavilion is designed and fabricated to verify the feasibility of the proposed system. This research could provide a novel mode of in-situ robotic timber fabrication and corresponding glulam structure system for timber construction.
keywords	Mobile Robot, Timber Structure, In-situ Fabrication, Computational Design, SDG 9
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	caadria2022_60
id	caadria2022_60
authors	Chowdhury, Shuva and Hanegraaf, Johan
year	2022
title	Co-presence in Remote VR Co-design: Using Remote Virtual Collaborative Tool Arkio in Campus Design
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. 465-474
doi	https://doi.org/10.52842/conf.caadria.2022.2.465
summary	A participatory co-design approach is most often counted as a time-consuming method and ends without any concrete solution. Since the new evolution of virtual reality-based communication tools, researchers are trying to integrate citizens in the spatial design making process in-situ situation. However, there has been little research on how remotely co-presence in VR can integrate end-users in a co-design environment in re-envisioning their own using spaces. This study adopts a remote VR collaborative platform Arkio to involve novice designers remotely to design their known urban places. Participants are in three different virtual communication systems. Groups can actively engage in co-creating 3D artefacts relevant to a virtual urban environment and communicate through audio together in a remote setting. The platform was tested with a group of graduate students. The given design task was to re-envision the urban places of their academic institute campus. The sessions have been recorded and transcribed for analysis. The analysis of remote conversations shows that co-presence existed while they were engaged in co-design.
keywords	Affordable Tools, Remote Collaboration, Virtual Reality, Participatory Design, SDG 11, SDG 9
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	caadria2022_55
id	caadria2022_55
authors	Dritsas, Stylianos, Hoo, Jian Li and Fernandez, Javier
year	2022
title	Sustainable Rapid Prototyping with Fungus-Like Adhesive Materials
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. 263-272
doi	https://doi.org/10.52842/conf.caadria.2022.2.263
summary	The purpose of the research work presented in this paper is to develop a sustainable rapid prototyping technology. Fused filament fabrication using synthetic polymers is today the most popular method of rapid prototyping. This has environmental repercussions because the short-lived artifacts produced using rapid prototyping contribute to the problem of plastic waste. Natural biological materials, namely Fungus-Like Adhesive Materials (FLAM) investigated here, offer a sustainable alternative. FLAM are cellulose and chitin composites with renewable sourcing and naturally biodegradable characteristics. The 3D printing process developed for FLAM in the past, targeted large-scale additive manufacturing applications. Here we assess the feasibility of increasing its resolution such that it can be used for rapid prototyping. Challenges and solutions related to material, mechanical and environmental control parameters are presented as well as experimental prototypes aimed at evaluating the proposed process characteristics.
keywords	Rapid Prototyping, Sustainable Manufacturing, Digital Fabrication, Robotic Fabrication, SDG 12
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	cdrf2022_432
id	cdrf2022_432
authors	Felix Raspall and Carlos Banón
year	2022
title	Large-Scale 3D Printing Using Recycled PET. The Case of Upcycle Lab @ DB Schenker Singapore
source	Proceedings of the 2022 DigitalFUTURES The 4st International Conference on Computational Design and Robotic Fabrication (CDRF 2022)
doi	https://doi.org/https://doi.org/10.1007/978-981-19-8637-6_37
summary	Large-scale additive manufacturing for architectural applications is a growing research field. In the recent years, several real-scale projects demonstrated a preliminary viability of this technology for practical applications in architecture. Concurrently, the use of recycled polymers in 3d printing has progressed as a more sustainable feed for small-scale applications. However, there are limited empirical examples on the use of additive manufacturing using recycled polymers in large-scale and real-life architectural applications. This project develops two design and fabrication approaches to large-scale manufacturing using recycled Polyethylene Terephthalate (PET) from single-use bottles into large design elements and tests them in a real-life project. The two designs are discussed in detail: a 4 m diameter dome-like chandelier printed with a robotic extruder using recycled PET pellets, and a 3.5 m diameter chandelier using a Fused Deposition Modeling (FDM) printing farm. The paper covers the state of the art of related printing technologies and their gaps, describes the printing process developed in this research, details the design of the domes, and discusses the empirical evidence on the benefits and drawbacks of large-scale additive manufacturing using recycled polymers. Overall, the research demonstrates the possibilities of large-scale additive manufacturing using recycled polymers, adding findings form a real-life project to the growing body of research on additive manufacturing in architecture.
series	cdrf
email
last changed	2024/05/29 14:03

_id	sigradi2022_66
id	sigradi2022_66
authors	Garcia-Alvarado, Rodrigo; Banda Perez, Pablo; Moroni Orellana, Ginnia
year	2022
title	Architectural Diversity of Residential Buildings through Digital Design and Robotic Construction
source	Herrera, PC, Dreifuss-Serrano, C, Gómez, P, Arris-Calderon, LF, Critical Appropriations - Proceedings of the XXVI Conference of the Iberoamerican Society of Digital Graphics (SIGraDi 2022), Universidad Peruana de Ciencias Aplicadas, Lima, 7-11 November 2022 , pp. 957–966
summary	The housing demand in Latin America has promoted to build big complexes with repetitive designs to ensure their execution and commercialization, but neglecting the differences in occupation, cultures, ages, abilities, genders, climates and locations. Producing low quality, environmental deterioration and social alienation. This work exposes a parametric programming and robotic construction strategy to develop a varied residential process. Based on structural volumes and 3d-printed walls, to provide a diversity of housing configurations. The modular generation of volumes and development of the envelope is programmed to meet various thermal and occupational conditions, with printing trajectories for the walls according to the equipment, execution processes and material capacities. A repertoire of 494 residential volumes has been defined and prototype walls have been made, suggesting an innovative design system, wich provides a new paradigm for housing construction with digital technologies and robotic execution to diversify residential quality.
keywords	Inclusive Design, Housing, Parametric Design, Robotics, Digital Fabrication
series	SIGraDi
email
last changed	2023/05/16 16:57

_id	caadria2022_476
id	caadria2022_476
authors	Gong, Lei, Zhou, Yifan, Zheng, Lang and Yuan, Philip F.
year	2022
title	Extrusion-Based 3d Printing for Recyclable Gypsum
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. 273-282
doi	https://doi.org/10.52842/conf.caadria.2022.2.273
summary	Gypsum is one of the most commonly used construction materials in cladding and non-load-bearing decoration. Recently, 3D printing technology has been involved in creating complex geometry. The particle-based method is the principal approach in 3D gypsum printing. However, the complex device and limited printable range limit the massive production of large-scale building components. This paper proposed a novel extrusion-based gypsum printing method and corresponding robotic fabrication workflow. First, several experiments are conducted to analyze the effect of different admixtures (retarder, activation agent, and accelerator) on the material setting properties. Second, a set-on-demand gypsum-based material is proposed by actively controlling multiple admixtures. Then, a process parameter-based robotic fabrication workflow is proposed, and a set of extrusion- based 3D gypsum printing equipment is built. center864108000A curved gypsum panel sample is printed as experimental verification. By comparing to the particle-based method, The test sample shows that the extrusion-based method can effectively improve the production efficiency and reduce the production cost. Therefore, the proposed method gives a relatively efficient and cost-effective way to produce recyclable gypsum material massively.
keywords	3D Gypsum Printing, Extrusion-based, Set-on-Demand Material, Material Modification, Robotic Fabrication Workflow, SDG 9
series	CAADRIA
email
last changed	2022/07/22 07:34

_id	ascaad2022_032
id	ascaad2022_032
authors	Ibrahim, Aly; Omar, Walid; Ebrahim, Sherif; Abdelmohsen, Sherif
year	2022
title	Moisture-Harvesting Lizard Skins as an Inspiration for Performative Building Envelopes in Arid Climates
source	Hybrid Spaces of the Metaverse - Architecture in the Age of the Metaverse: Opportunities and Potentials [10th ASCAAD Conference Proceedings] Debbieh (Lebanon) [Virtual Conference] 12-13 October 2022, pp. 515-528
summary	Research on shape-shifting adaptive architectural skins has recently focused on bio-inspired programmable materials. Only a few studies however examine the microstructure of living organisms, especially in terms of morphological adaptation in harsh climatic conditions. This paper explores the microstructure of moisture-harvesting lizard skins, specifically the Trapelus species of the Agamidae family in North-East Africa, as an inspiration for programmable materials in adaptive building skins in the arid climate of Egypt. The paper investigates the ability to improve the durability and morphological capabilities of programmable materials based on surface formation, utilizing digital fabrication techniques. A series of physical experiments were conducted on different samples of 3D printed wood filament under several humidity conditions, as a single layer, with textured patterns, and with the addition of potassium chloride as a moisture-harvesting chemical composite. The paper concluded that materials composed of textured patterns and moisture-harvesting chemical composites exhibited the highest moisture retention, therefore leading to advantages in its use in adaptive building skins in arid climates, through a wide variety of design possibilities for performative building envelopes.
series	ASCAAD
email
last changed	2024/02/16 13:24

_id	ecaade2022_38
id	ecaade2022_38
authors	Klemmt, Christoph, Aghaei Meibodi, Mania, Beaucage, Gregory and Mcgee, Wes
year	2022
title	Large-scale Robotic 3D Printing of Plant Fibre and Bioplastic Composites
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. 9–18
doi	https://doi.org/10.52842/conf.ecaade.2022.1.009
summary	This paper presents a methodology for the robotic 3D printing of cellulose and wood shavings with bioplastics for applications in architecture, moulds, or furniture design. The material composition consists of plant fibre, binders, solvents and additives. All of the ingredients are either biodegradable or biocompatible, as in, they naturally occur in the environment. Different material compositions have been explored and tested for their extrusion behaviour, drying and curing behaviour, buildability and final product qualities, resulting in the manufacture of several case-study prototypes as a proof of concept.
keywords	3D Printing, Wood, Cellulose, Bioplastic, Robot, Growth Simulation
series	eCAADe
email
last changed	2024/04/22 07:10

_id	acadia22_76
id	acadia22_76
authors	Kwon, Hyunchul; Soni, Priyank; Saeedi, Ali; Shahverdi, Moslem; Dillenburger, Benjamin
year	2022
title	3D Printing and Shape Memory Alloys
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. 76-89.
summary	This paper presents a novel method combining the use of 3D printing (3DP) and shape memory alloys (SMAs) to compose kinetic architectural elements that are energy- and material-efficient within compact-integrated composites. Kinetic systems for architectural use have been explored since the late twentieth century using motor mechanics. However, the primary challenges of this method include maintenance of mechanical units, their high energy demand, and noise during actuation. To address these shortcomings, this research explores a hybrid of 3DP motion-optimized parts with embedded SMAs as a muscle that changes shape with temperature stimulus
series	ACADIA
type	paper
email
last changed	2024/02/06 14:00

_id	sigradi2022_147
id	sigradi2022_147
authors	Macruz, Andrea; Daneluzzo, Mirko; Tawakul, Hind; Al Hashimi, Mona
year	2022
title	Performative Accessories in Multispecies Design: Enhancing Humidity Levels for Plants with 3D-printed Biomimetic Structures
source	Herrera, PC, Dreifuss-Serrano, C, Gómez, P, Arris-Calderon, LF, Critical Appropriations - Proceedings of the XXVI Conference of the Iberoamerican Society of Digital Graphics (SIGraDi 2022), Universidad Peruana de Ciencias Aplicadas, Lima, 7-11 November 2022 , pp. 1201–1212
summary	The paper moves the design debate from human-centered toward posthuman design, discussing how designers can use a strategy based on Multispecies Ethnography and Participatory Design, considering nonhuman agents to create efficient designs. To illustrate this, it describes a project of 3D-printed biomimetic structures for plants that enhances humidity levels in internal environments. The project methodology started by analyzing the ideal humidity for indoor plants and humans, which is between 40% to 50%. Subsequently, a biomimicry study was done to understand how to generate a cooler indoor microclimate using passive strategies and how to create an effective interlocking system to connect structures. 3D-printed structures as supports for water droplets were designed according to their performance and placed in different arrangements around the plant itself. The structures were tested, and humidity levels increased by approximately 13%. The paper discusses the resultant evidence-based design and a new approach to mass customization.
keywords	Bio-Inspired Design, Multispecies Design, Biomimicry, 3D printing, Humidity Control
series	SIGraDi
email
last changed	2023/05/16 16:57

_id	ijac202220213
id	ijac202220213
authors	Morales-Beltran, Mauricio; Berk Selamoglu; Kaan Çetin; Halis Arda Özdemir; Fulya Özbey
year	2022
title	Exploring 3D printing techniques for the hybrid fabrication of discrete topology optimized structures
source	International Journal of Architectural Computing 2022, Vol. 20 - no. 2, pp. 400–419
summary	The application of topology optimization methods in architecture, while useful for conceptual design explorations, seems to be limited by the practical realization of continuum-type design outcomes. One way to overcome this limitation is setting up design and fabrication techniques, through which continuum domains become discrete structures. This study investigates to which extent discrete optimized systems can be built using a hybrid approach combining 3D printing and analogue fabrication techniques. The procedure is based on an algorithm in Grasshopper (Rhinoceros) that translates continuum topologies obtained in MATLAB into discrete systems, providing alternatives depending on the targeted volume fraction, the intended surface smoothness of the structural components and building material. The study focuses on fabrication aspects and structural performance of discrete structures using 3D printed nodes. Experimental tests evaluate the compressive strength of different types of filaments with varied infill percentages. Final prototypes are fabricated using a hybrid technique involving the use of 3D printed nodes to assemble bar-arrays comprising wooden members. Results provide a critical appraisal of the limitations and potentialities of 3D printing for hybrid fabrication of real scale structures
keywords	Topology optimization, discrete structures, material hybridity, digital fabrication, conceptual design, PLA, PETG
series	journal
last changed	2024/04/17 14:29

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