scholarly journals 3D-Printed Biodigital Clay Bricks

Biomimetics ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 59
Author(s):  
Yomna K. Abdallah ◽  
Alberto T. Estévez
Keyword(s):  
3D Printing ◽  
Built Environment ◽  
Construction Materials ◽  
Full Scale ◽  
Digital Design ◽  
Material Consumption ◽  
Clay Bricks ◽  
3D Printed ◽  
The One ◽  
Formal Design

Construction materials and techniques have witnessed major advancements due to the application of digital tools in the design and fabrication processes, leading to a wide array of possibilities, especially in additive digital manufacturing tools and 3D printing techniques, scales, and materials. However, possibilities carry responsibilities with them and raise the question of the sustainability of 3D printing applications in the built environment in terms of material consumption and construction processes: how should one use digital design and 3D printing to achieve minimum material use, minimum production processes, and optimized application in the built environment? In this work, we propose an optimized formal design of “Biodigital Barcelona Clay Bricks” to achieve sustainability in the use of materials. These were achieved by using a bottom-up methodology of biolearning to extract the formal grammar of the bricks that is suitable for their various applications in the built environment as building units, thereby realizing the concept of formal physiology, as well as employing the concept of fractality or pixilation by using 3D printing to create the bricks as building units on an architectural scale. This enables the adoption of this method as an alternative construction procedure instead of conventional clay brick and full-scale 3D printing of architecture on a wider and more democratic scale, avoiding the high costs of 3D printing machines and lengthy processes of the one-step, 3D-printed, full-scale architecture, while also guaranteeing minimum material consumption and maximum forma–function coherency. The “Biodigital Barcelona Clay Bricks” were developed using Rhinoceros 3D and Grasshopper 3D + Plugins (Anemone and Kangaroo) and were 3D printed in clay.

3D Printable Resources for Engaging STEM Students in Laboratory Learning Activities and Outreach Programs: Inexpensive and User-Friendly Instrument Kits for Educators

MRS Advances ◽  
2018 ◽  
Vol 3 (49) ◽  
pp. 2937-2942 ◽  
Author(s):  
Lon A. Porter
Keyword(s):  
3D Printing ◽  
Mathematics Learning ◽  
Digital Design ◽  
Outreach Programs ◽  
Stem Students ◽  
3D Printed ◽  
Design Software ◽  
And Performance ◽  
And Mathematics ◽  
User Friendly

ABSTRACTContinued advances in digital design software and 3D printing methods enable innovative approaches in the development of new educational tools for laboratory-based STEM (science, technology, engineering and mathematics) learning. The decreasing cost of 3D printing equipment and greater access provided by university fabrication centers afford unique opportunities for educators to transcend the limitations of conventional modes of student engagement with analytical instrumentation. This work shares successful efforts at Wabash College to integrate user-friendly and inexpensive 3D printed instruments kits into introductory STEM coursework. The laboratory kits and activities described provide new tools for engaging students in the exploration of instrument design and performance. These experiences provide effective ways to assist active-learners in discovering the technology and fundamental principles of analysis and deliberately confront the “black box” perception of instrumentation.

scholarly journals The Application of 3D-Printing Techniques in the Manufacturing of Cement-Based Construction Products and Experiences Based on the Assessment of Such Products

Buildings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 144
Author(s):  
Guillermo Sotorrío Ortega ◽  
Javier Alonso Madrid ◽  
Nils O. E. Olsson ◽  
José Antonio Tenorio Ríos
Keyword(s):  
3D Printing ◽  
Construction Industry ◽  
Material Consumption ◽  
Construction Products ◽  
International Projects ◽  
Substantial Progress ◽  
3D Printed ◽  
Materials Used ◽  
Printing Techniques

The construction industry has embraced digitisation and industrialisation in response to the need to increase its productivity, optimise material consumption and improve workmanship. Additive manufacturing (AM), more widely known as 3D printing, has driven substantial progress in these respects in other industries, and a number of national and international projects have helped to introduce the technique to the construction industry. As with other innovative processes not covered by uniform standards, appropriate assessments and testing methodologies to control the quality of the 3D-printed end products, while not obligatory, are advisable. This article shows that regulation is not an obstacle to the use of an innovative product, such as 3D printing, by proposing quality-control tests and an assessment methodology, in the understanding that standardisation ensures the viability of a technology. The information, including the methods and results, is based on the authors’ experiences in the development of three research projects pertaining to 3D printing. This paper also discusses whether the performance of the materials used in 3D printing could be superior to traditional ones.

Combinatorial Investigation of Mechanical Properties of Biomimicked Composites

2019 ◽  
Author(s):  
Seyed M. Allameh ◽  
Roger Miller ◽  
Abdullah Almuzaini
Keyword(s):  
3D Printing ◽  
Construction Industry ◽  
Construction Materials ◽  
3D Printer ◽  
In Situ Tests ◽  
Art Economics ◽  
Materials Research ◽  
3D Printed ◽  
Combinatorial Materials

Abstract This study presents the preliminary results of in-situ tests conducted on structural biomimicked composites built by 3D printing. Construction industry is looking seriously into 3D printed structures that can be incorporated into the conventional buildings. Further refinement of materials and processing will lead to the 3D printing of buildings in future. The advantages afforded by 3D printing are unrivaled, creating unprecedented opportunities to express art, economics, environmentally friendly designs, lightweight schemes, among many others. To determine the reliability and suitability of structural composites for use in construction, it is important to test these in shapes, and geometries that are appropriate to 3D printing. Combinatorial materials research allows the fabrication and in-situ testing of composites made by mix and match of various materials. This study focuses on the characterization of mechanical behavior of biomimicked composites fabricated by a 3D printer. To accomplish this, a meter-sized 3D printer was equipped with material dispensers as well as load sensors. Composites were made of various construction materials, adhesive, and reinforcement and subsequently tested by the same printer. The results are presented, and the implications of findings are discussed on their impact on the construction industry.

scholarly journals Beyond the Ecology of Concrete Sausages

2016 ◽  
Author(s):  
Sasa Zivkovic ◽  
◽  
Leslie Lok ◽  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Full Scale ◽  
Building Construction ◽  
Printing Technology ◽  
3D Printing Technology ◽  
Earth Construction ◽  
Construction Techniques ◽  
3D Printed

With the advancement of full scale 3d printing technology, industrialized building construction is rapidly moving towards a highly process-idiosyncratic and expressionist architecture of material sausages. Drawing connections between local vernacular (ancient modern) earth construction techniques and automated additive manufacturing strategies, this paper explores the potential for 3d printed architecture across the Americas, dissecting the technology’s ecological advantages and architectural possibilities in the process.

scholarly journals A 3D printing Short Course: A Case Study for Applications in the Geoscience Teaching and Communication for Specialists and Non-experts

2021 ◽  
Vol 9 ◽  
Author(s):  
Sergey Ishutov ◽  
Kevin Hodder ◽  
Rick Chalaturnyk ◽  
Gonzalo Zambrano-Narvaez
Keyword(s):  
3D Printing ◽  
Data Communication ◽  
Course Evaluation ◽  
Digital Design ◽  
Digital Models ◽  
3D Print ◽  
Short Course ◽  
3D Printed ◽  
Geoscience Research

3D printing developed as a prototyping method in the early 1980s, yet it is considered as a 21st century technology for transforming digital models into tangible objects. 3D printing has recently become a critical tool in the geoscience research, education, and technical communication due to the expansion of the market for 3D printers and materials. 3D printing changes the perception of how we interact with our data and how we explain our science to non-experts, researchers, educators, and stakeholders. Hence, a one-day short course was designed and delivered to a group of professors, students, postdoctoral fellows, and technical staff to present the application of 3D printing in teaching and communication concepts in the geoscience. This case study was aimed at evaluating how a diverse group of participants with geoscience and engineering background and no prior experience with computer-aided modeling (CAD) or 3D printing could understand the principles of different 3D printing techniques and apply these methods in their respective disciplines. In addition, the course evaluation questionnaire allowed us to assess human perception of tangible and digital models and to demonstrate the effectiveness of 3D printing in data communication. The course involved five modules: 1) an introduction lecture on the 3D printing methods and materials; 2) an individual CAD modeling exercise; 3) a tour to 3D printing facilities with hands-on experience on model processing; 4) a tour to experimentation facilities where 3D-printed models were tested; and 5) group activities based on the examples of how to apply 3D printing in the current or future geoscience research and teaching. The participants had a unique opportunity to create a digital design at the beginning of the course using CAD software, analyze it and 3D print the final model at the end of the course. While this course helped the students understand how rendering algorithms could be used as a learning aid, educators gained experience in rapid preparation of visual aids for teaching, and researchers gained skills on the integration of the digital datasets with 3D-printed models to support societal and technical objectives.

3D Printing Miniature Marine Structures Models for Structural Analysis Purpose: Is it Possible?

2019 ◽  
Author(s):  
Miguel Angel Calle Gonzales ◽  
Pentti Kujala
Keyword(s):  
3D Printing ◽  
Scaling Laws ◽  
Experimental Tests ◽  
Additive Manufacture ◽  
Marine Structures ◽  
Thin Walled Structures ◽  
Deformation And Fracture ◽  
Structural Responses ◽  
3D Printed ◽  
The One

Abstract In the last few years, additive manufacture techniques — also known as 3d printing — are gaining more applications in the maritime sector including the production of functional large ship components in compliance with demanded operational and quality standards. By contrast, 3d printing miniature models of marine structures with the aim to reproduce structural responses brings along a higher degree of complexity. On the one hand, miniature thin-walled structures entails different manufacturing challenges when compared with large-size ship components. On the other hand, modeling structural events that comprise extreme reduction scales (around 1:100), material deformation and fracture at high loading rates, among other aspects, require purpose-designed scaling laws to handle all these effects adequately. The aim of this work is to present a wide panorama in the development of miniature 3d printed marine structures aiming to model experimentally ship collision and grounding events in reduced scale. Some preliminary experimental tests in miniature marine structures are also presented.

scholarly journals Preliminary Study on Polishing SLA 3D-Printed ABS-Like Resins for Surface Roughness and Glossiness Reduction

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 843
Author(s):  
Jungyu Son ◽  
Hyunseop Lee
Keyword(s):  
Surface Roughness ◽  
3D Printing ◽  
Acrylonitrile Butadiene Styrene ◽  
Machining Processes ◽  
Surface Machining ◽  
One Step ◽  
3D Printed ◽  
Printed Materials ◽  
The One ◽  
Considerable Period

After the development of 3D printing, the post-processing of the 3D-printed materials has been continuously studied, and with the recent expansion of the application of 3D printing, interest in it is increasing. Among various surface-machining processes, chemical mechanical polishing (CMP) is a technology that can effectively provide a fine surface via chemical reactions and mechanical material removal. In this study, two polishing methods were evaluated for the reduction of surface roughness and glossiness of a stereolithography apparatus (SLA) 3D-printed ABS (acrylonitrile butadiene styrene)-like resin. Experiments were conducted on the application of CMP directly to the 3D-printed ABS-like resin (one-step polishing), and on the application of sanding (#2000) and CMP sequentially (two-step polishing). The one-step polishing experiments showed that it took a considerable period of time to remove waviness on the surface of the as-3D printed specimen using CMP. However, in the case of two-step polishing, surface roughness was reduced, and glossiness was increased faster than in the case of one-step polishing via sanding and CMP. Consequently, the experimental results show that the two-step polishing method reduced roughness more efficiently than the one-step polishing method.

scholarly journals Microfluidic devices manufacturing combining stereolithography and pulsed laser ablation

2021 ◽  
Vol 255 ◽  
pp. 12009
Author(s):  
Bastián Carnero ◽  
Carmen Bao-Varela ◽  
Ana Isabel Gómez-Varela ◽  
María Teresa Flores-Arias
Keyword(s):  
Laser Ablation ◽  
3D Printing ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Microfluidic Devices ◽  
Hybrid Technique ◽  
Detailed Surface ◽  
3D Printed ◽  
The One ◽  
User Friendly

3D printing has revolutionized the field of microfluidics manufacturing by simplifying the typical processes offering a considerable accuracy and user-friendly procedures. For its part, laser ablation proves to be a versatile technology to perform detailed surface micropatterning. A hybrid technique that combines both technologies is proposed, employing them in their most suitable range of dimensions. This technique allows to manufacture accurate microfluidics devices as the one proposed: a microchannel, obtained using a stereolithographic printer, coupled with an array of microlenses, obtained by pulsed laser ablation of a 3D printed master.

Development of 3D-printed customized facial padding for burn patients

2019 ◽  
Vol 25 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Muhammad Aiman Ahmad Fozi ◽  
Mohamed Najib Salleh ◽  
Khairul Azwan Ismail
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Computer Aided Design ◽  
Digital Design ◽  
Pressure Measurements ◽  
Pressure Therapy ◽  
Content Type ◽  
Manufacturing Method ◽  
Pressure Region ◽  
3D Printed

Purpose This paper aims to develop 3D-printed customized padding to increase pressure at the zero pressure region. This padding is specifically intended for facial areas with complex contours in pressure therapy treatment of hypertrophic scars. Design/methodology/approach To carry out this study, a full-face head garment was fabricated by a local occupational therapist, and pressure measurements were conducted to establish the pressure exerted by this head garment and to determine the zero pressure region. Furthermore, an additional manufacturing method was used to construct customized padding, and pressure measurements were performed to measure the pressure exerted after application of this customized padding. Findings The results reveal that 3D-printed customized padding can increase pressure at the zero pressure region, which occurs on complex contour surfaces with a spatial gap because of non-contact of the head garment and facial surfaces. Practical implications This paper suggests that an additive manufacturing method using 3D printing is capable of producing accurate, functional and low-cost medical parts for rehabilitation. Moreover, the 3D-printed padding fabricated by additive manufacturing assists in generating optimal pressure, which is necessary for effective pressure therapy. Originality/value Digital design using 3D scanning, computer-aided design and 3D printing is capable of designing and producing properly fitting, customized padding that functions to increase pressure from zero to an acceptable pressure range required for pressure therapy.

scholarly journals Optimized Unidirectional and Bidirectional Stiffened Objects for Minimum Material Consumption of 3D Printing

Mathematics ◽  
2021 ◽  
Vol 9 (21) ◽  
pp. 2835
Author(s):  
Anzong Zheng ◽  
Zaiping Zhu ◽  
Shaojun Bian ◽  
Jian Chang ◽  
Habibollah Haron ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
3D Printing ◽  
Optimization Design ◽  
Industrial Applications ◽  
Material Consumption ◽  
Element Analysis ◽  
Industrial Sectors ◽  
Stiffened Structures ◽  
3D Printed

3D printing, regarded as the most popular additive manufacturing technology, is finding many applications in various industrial sectors. Along with the increasing number of its industrial applications, reducing its material consumption and increasing the strength of 3D printed objects have become an important topic. In this paper, we introduce unidirectionally and bidirectionally stiffened structures into 3D printing to increase the strength and stiffness of 3D printed objects and reduce their material consumption. To maximize the advantages of such stiffened structures, we investigated finite element analysis, especially for general cases of stiffeners in arbitrary positions and directions, and performed optimization design to minimize the total volume of stiffened structures. Many examples are presented to demonstrate the effectiveness of the proposed finite element analysis and optimization design as well as significant reductions in the material costs and stresses in 3D printed objects stiffened with unidirectional and bidirectional stiffeners.

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