An Additive and Subtractive Process for Manufacturing with Natural Composites

Dritsas, Stylianos; Vijay, Yadunund; Dimopoulou, Marina; Sanadiya, Naresh; Fernandez, Javier G.

doi:10.1007/978-3-319-92294-2_14

Cited by 7 publications

(5 citation statements)

References 16 publications

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“…Thus, apart from requiring lower energy, cold extrusion enables increased speed of printing using large nozzle diameters, exactly because the material does not need to transition phase at the point and time of its extrusion. The system developed for 3D printing initially targeted large-scale artefacts to demonstrate those unique process features (Dritsas et al, 2019). In this study we modified the system to assess the potential for using FLAM in smaller scale rapid prototyping applications.…”

Section: Background Workmentioning

confidence: 99%

Proceedings of the 27th Conference on Computer Aided Architectural Design Research in Asia (CAADRIA) [Volume 2]

2022

CAADRIA Proceedings

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This paper discusses the design and development of scale masonry structures using robot arms, computer vision hardware and bespoke computational workflows. In parallel to the development of full-scale masonry solutions using a Cable Driven Parallel Robot (CDPR), a faster method for testing large numbers of brick elements is needed to verify buildability, mitigate collisions, and think differently about recycled materials during real-world construction activities. Additionally, by incorporating scanning and analysis technology, materials can be digitized, and their attributes translated into variables for placement within an intended structure.

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Section: Background Workmentioning

confidence: 99%

Proceedings of the 27th Conference on Computer Aided Architectural Design Research in Asia (CAADRIA) [Volume 2]

2022

CAADRIA Proceedings

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“…The system of fabrication process consists of a 6-axis Robot arm UR5-e with a working radius of 850 mm and maximum payload up to 5 kg, dosing dispenser eco-PEN600 with a speed control plug'n'dose (ViscoTec), and a custom-made extrusion system (see figure 6). The set-up of the hardware was based on research of Dritsas et al (2018), who explored a manufacturing process deploying natural composite materials, where the objection of the project was in the concurrent design and developments of the material along with the manufacturing process. To determine gradient in material deposition, following aspects were investigated: material composition and concentration, pressure variation, which results in continuously varying material accumulation and layering, which provides higher degree reinforcement rather than one-layered surface.…”

Section: Fabricationmentioning

confidence: 99%

De gradus - Programming heterogeneous performance of functionally graded bio-polymers for degradable agricultural shading structures.

Lesna¹,

Nicholas²

2020

CAADRIA Proceedings

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This paper presents an holistic approach to the digital design and fabrication of fungi-and algae-based biopolymers, based on studies and simulations of material properties and post-fabrication behavior. The research is motivated by the problem of plastic waste, the need to create more sustainable manufacturing processes, and the opportunity for material composition and organization to be informed by performance, leading to homogenous, complex and integral architectural elements for temporary architecture of agricultural shading systems. The paper details design and specification methods for functionally graded biopolymer panels, as well as fabrication methods through the making of prototypical built elements. The research details parallel trajectories of: material exploration made out of renewable and biodegradable resources available and abundant in every habitat on the earth; advancement in tools and methods for in-situ robotic additive manufacturing of viscous bio-polymers; development of the strategy for functional grading of the material properties to optimize site specificity and material distribution, and to reduce building material waste. It presents comparative material characterizations, an integrated simulation-based approach to support the process of programming localized performance, and architectural application tested via full-scale prototypes.

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“…Other explorations in the world of additive manufacturing and biocomposites consists in moving away from the traditional 3D printer environment and customizing a robotic arm with an altered extruder. Singapore University of Technology and Design developed a derivate of cellulose and chitin by looking at the chemical composition (Dritsas et al 2018). FLAM (fungal -like adhesive material) was therefore reproduced artificially associating structural biomolecules.…”

Section: Research Contextmentioning

confidence: 99%