Digital Fabrication Technologies Research Articles

The impact that exposure to digital fabrication technology has on student entrepreneurial intentions

PurposeThe purpose of this paper is to investigate the role exposure to digital fabrication technology plays in the development of students’ entrepreneurial self-efficacy (ESE) and intentions.Design/methodology/approachData were collected from 131 students enrolled in a business administration undergraduate program at a large Midwestern university in the USA. Data were analyzed using confirmatory factor analysis and structural equation modeling.FindingsResults provide evidence on how exposure to and hands-on experience with digital manufacturing technology in universities can have a positive impact on students’ ESE and intentions to become entrepreneurs.Practical implicationsResults support initiatives by business schools and entrepreneurship programs to invest in digital manufacturing technology as they help increase students’ confidence in their technological and entrepreneurial abilities.Originality/valueThis is the first study that directly looks at the role that exposure to digital technology in a business and entrepreneurship education program has on students’ ESE and intentions.

Hyperreal Instruments: Bridging VR and Digital Fabrication to Facilitate New Forms of Musical Expression

Virtual Reality (VR) and digital fabrication technologies today are ushering in a new wave of opportunities in instrument design; the marriage of these two domains, seemingly at odds with each other, can bring impossible instruments to life. In this article, the authors first sample such instruments throughout history. The authors also look at how technology has facilitated the materialization of impossible instruments from the twentieth century on. They then discuss the bridging of VR and fabrication as a new frontier in instrument design, where synthetic sounds can be used to condition an equally synthetic sensory scaffolding upon which the time-varying spectra can be interactively anchored: The result is new instruments that can defy our sense of audiovisual reality while satisfying our proprioceptive and haptic expectations. The authors report on their ongoing work as well as their projections of how emerging technologies in VR and fabrication will shape the design of new musical interfaces.

Understanding visitor interaction with a projection augmented relief model display: insights from an in-the-wild study in the English Lake District

Projection augmented relief models (PARMs) are a promising tangible display technology for assisting users in orientating themselves within the represented landscape. The production of physical models is now easier than ever thanks to more freely available digital terrain data and 3D fabrication technology. When placed in a public setting, such as a visitor centre, the physical nature of such displays coupled with digital surface projection is compelling, enticing passers-by to notice and interact playfully with the display. In this article, we describe findings from our in-the-wild study of a PARM display designed to engage and orient visitors to the rural landscape of a remote valley in the heart of the English Lake District. The deployment has involved close collaboration with the Lake District National Trust, and the results of our 3-day observation study (n = 221) contribute to the growing research community seeking to explore and uncover technology designs that are both playful and unobtrusive to the nature experience. Our research also contributes to the literature on public and situated digital displays and, in particular, understandings of visitor behaviour as considered through the so-called audience funnel framework. Our observations revealed that a significant portion (79%) of visitors noticed the PARM display and that, of these, 68% transitioned to giving the display their focal attention. We also observed an apparent expectation for the PARM display to support direct tangible interaction (such as pointing gestures) which contrasts to the phenomenon of interaction blindness discussed in the literature.

High Noon on the Creative Frontier: Configuring Human and Machine Expertise

In 1960, CBS aired a special issue entitled “The Thinking Machine” which featured three Western playlets scripted by a computer programmed by MIT researchers. Almost 60 years later, two researchers at Autodesk used a computer program to help design a chair. In this article, I link these two seemingly discrete examples of computational creativity in order to highlight how digital fabrication technologies have served as an important test site for defining human and computational expertise. I do so by illustrating how concepts of “creativity” and “routine” were produced alongside the concepts of computational creativity during the development of digital fabrication. This dichotomy of “creative” and “routine” is not only used to determine the kinds of tasks that are appropriate for humans and computers to perform within the design and production process, but it is also used to render invisible the embodied craft knowledge required to substantiate these systems.

ARTIFICIAL INTELLIGENCE IN WORKPLACES AND HOW IT WILL AFFECT EMPLOYMENT IN LATVIA

Already, artificial intelligence (AI) is all around us, from self-driving cars and drones to virtual assistants and software that translate or invest. Impressive progress has been made in AI in recent years, driven by exponential increases in computing power and by the availability of vast amounts of data, from software used to discover new drugs to algorithms used to predict our cultural interests. Digital fabrication technologies, meanwhile, are interacting with the biological world on a daily basis. Engineers, designers, and architects are combining computational design, additive manufacturing, materials engineering, and synthetic biology to pioneer a symbiosis between microorganisms, our bodies, the products we consume, and even the buildings we inhabit. Companies in the technology, media, and telecommunications industry expect AI to have a significant impact on product offerings in the next five years. This research contains the data from a pilot survey from Latvian business executives’ expectations for AI and robotics for the next 5 years. The aim of this research is to find out if AI and robotics will make significant impact on workplaces in Latvia in the next five years.

The application of digital fabrication technologies to the art and design curriculum in a teacher preparation program: a case study

In recent 5 years, digital fabrication technologies have not only advanced rapidly but have also become more user-friendly and affordable, especially regarding their educational uses. Due to these technologies’ capability to link virtual and physical making, educators have extensively discussed their potential impact on fostering a learning-by-doing constructionist approach to science, technology, engineering, and mathematics at all levels of education. However, in K-12 art and design education, the uptake of digital fabrication technologies is lagging, and few studies have measured its potential benefits and how to equip preservice teachers with relevant knowledge and skills for technology-infused classrooms. This exploratory case study investigated how creative processes using digital fabrication technologies can benefit art and design education in the pre-service teacher program and K-12 education context. The data were collected via class observation, artifact analysis and questionnaire. The results showed that digital fabrication technologies had positive overall effects on preservice teachers’ learning in the following areas: problem-solving skills, accuracy in engineering, communicating ideas using effective visual presentation methods, collaborative learning, and understanding the implications of integrating technology into traditional art and design media and educational processes. Additionally, shortfalls were identified and suggestions made for further improvements for design education in teacher training programs.

Influence of Calcium Nitrate and Sodium Hydroxide on Carbonation-Induced Steel Corrosion in Concrete

Recent developments in concrete technology, together with sustainability concerns and requirements related to digital concrete fabrication technologies, lead to increased usage of chemical admixtur...

‘Materials as a Design Tool’ Design Philosophy Applied in Three Innovative Research Pavilions Out of Sustainable Building Materials with Controlled End-Of-Life Scenarios

Choosing building materials is usually the stage that follows design in the architectural design process, and is rarely used as a main input and driver for the design of the whole building’s geometries or structures. As an approach to have control over the environmental impact of the applied building materials and their after-use scenarios, an approach has been initiated by the author through a series of research studies, architectural built prototypes, and green material developments. This paper illustrates how sustainable building materials can be a main input in the design process, and how digital fabrication technologies can enable variable controlling strategies over the green materials’ properties, enabling adjustable innovative building spaces with new architectural typologies, aesthetic values, and controlled martial life cycles. Through this, a new type of design philosophy by means of applying sustainable building materials with closed life cycles is created. In this paper, three case studies of research pavilions are illustrated. The pavilions were prefabricated and constructed from newly developed sustainable building materials. The applied materials varied between structural and non-structural building materials, where each had a controlled end-of-life scenario. The application of the bio-based building materials was set as an initial design phase, and the architects here participated within two disciplines: once as designers, and additionally as green building material developers. In all three case studies, Design for Deconstruction (DfD) strategies were applied in different manners, encouraging architects to further follow such suggested approaches.

Understanding technology adoption by orthodontists: A qualitative study.

Orthodontics is evolving with advances in 3D imaging, additive fabrication, digital scanning, and treatment planning. With digital tools, orthodontic treatment may become more predictable, efficient, and effective while reducing side-effects. These technologies are affecting patient care, but knowledge of their adoption patterns and influence is incomplete. We aimed to identify adoption decision makers, information sources, perspectives, incentives, and barriers. Twenty-four privately practicing orthodontists were interviewed in a semistructured format following a topic guide. Interview transcripts were analyzed to identify factors in technology adoption and its perceived influence on practice. Thematic patterns were established through iterative systematic analysis, and qualitative validity was ensured with researcher triangulation. Qualitative interviews revealed that orthodontists make purchasing decisions independently from staff, after consulting other dentists and company representatives. Meetings, residency training, and continuing education courses are influential information sources, whereas research literature is not. Early and middle adopters are integrating digital imaging, planning, and fabrication technologies into practice and view enhanced ease of use, capabilities, performance, and procedural efficiency as primary incentives to adoption. Improving outcomes and patient comfort are not frequently cited as incentives, and all interviewees view cost as the largest barrier. Orthodontists positively perceive the influence of technology on their practices, but are concerned that further innovation and direct-to-consumer products will cause loss of market share. CAD/CAM appliances, 3D imaging, and digital treatment planning are viewed as future standards of care and are increasingly being incorporated into the orthodontic office. Understanding the technology adoption process can guide innovation to improve treatment and ease the transition into a digital workflow.

Natural Fibre-Reinforced Polymer Composites (NFRP) Fabricated from Lignocellulosic Fibres for Future Sustainable Architectural Applications, Case Studies: Segmented-Shell Construction, Acoustic Panels, and Furniture.

Due to the high amounts of waste generated from the building industry field, it has become essential to search for renewable building materials to be applied in wider and more innovative methods in architecture. One of the materials with the highest potential in this area is natural fibre-reinforced polymers (NFRP), which are also called biocomposites, and are filled or reinforced with annually renewable lignocellulosic fibres. This would permit variable closed material cycles’ scenarios and should decrease the amounts of waste generated in the building industry. Throughout this paper, this discussion will be illustrated through a number of developments and 1:1 mockups fabricated from newly developed lignocellulosic-based biocomposites from both bio-based and non-bio-based thermoplastic and thermoset polymers. Recyclability, closed materials cycles, and design variations with diverse digital fabrication technologies will be discussed in each case. The mock-ups’ concepts, materials’ compositions, and fabrication methods are illustrated. In the first case study, a structural segmented shell construction is developed and constructed. In the second case study, acoustic panels were developed. The final case studies are two types of furniture, where each is developed from a different lignocellulosic-based biocomposite. All of the presented case studies show diverse architectural design possibilities, structural abilities, and physical building characteristics.

The emergence of the maker movement: Implications for entrepreneurship research

The maker movement has been touted as a harbinger of the next industrial revolution. Through shared access to tools and digital fabrication technologies, makers can act as producers in the sharing economy and potentially increase entrepreneurship rates, catalyze advanced manufacturing, and spur economic development. We develop a model of the maker movement configured around social exchange, technology resources, and knowledge creation and sharing. We highlight opportunities for studying the conditions under which the movement might foster entrepreneurship outcomes and discuss how research on the maker movement can deepen our understanding of entrepreneurial teams and corporate entrepreneurship.

Biological Pattern Based on Reaction-Diffusion Mechanism Employed as Fabrication Strategy for a Shell Structure

This paper examines how generative architectural design processes aim to apply the principles of biological morphogenesis to the design and building of mechanical or architectural structures. Despite the revolution in computation aided design and interdisciplinary upgrades of digital fabrication technologies, design processes fail to acknowledge materials, tools and construction logic in an early design stage, as manifested in nature. The objective of this paper is to introduce a design workflow, based on the knowledge of the tool, material properties, design intuition and aesthetic criteria, to translate biological skin patterns to fabrication processes, incorporating three materials and procedures in a single parametric workflow. Mesh relaxation processes and weighted mesh graph representations are examined as design potentials for stripe organization in fabrication in analogy to numerical simulations of a reaction-diffusion (RD) mechanism. A thin shell and landscape emerge as a self-organizing system in equilibrium. The paper argues that skin patterns in fabrication open a new field for interdisciplinary investigation.

Large-Scale Urban Prototyping for Responsive Cities: A Conceptual Framework

Despite ubiquitous urbanization and worldwide standardization, there is a lack of better differentiation between cities towards more customized environments. Although current advancements in computational design and digital fabrication technologies have been successfully applied in various architectural scales, they have rarely, if ever, been implemented in a larger urban context that can lead to broader benefit and responses for citizens. This research aims to describe the potential of digital fabrication methods for large-scale urban applications that can subsequently lead to more diverse and unique urban environments. This paper summarizes state-of-the-art principles for large-scale building construction that have been implemented in the past, along with current research and practice, and outlines a conceptual framework for possible future directions for large quantities of automatic and bespoke construction deliveries for future customized urban scenarios. This article also outlines the effects of end-users’ participation on urban developments using online users’ interface to inform building processes. To address aspects of end-users’ engagement in customization of cities, the article elaborates the question of responsiveness, where the citizen actively interacts with the environment and building technology and vice versa in order to customize the urban space. This is theoretically and conceptually explained and illustrated in a case study related to the formerly industrial harbor area of Tanjong Pagar in the city of Singapore, which is a test-bed for new urban developments on 325 ha of waterfront land in the downtown port area within the context of a tropical city.

Tools for Tooling: Digital Fabrication Technology as the Innovation Enabler

This paper describes research concerning the creation of a novel sheet glass forming system based on the Reconfigurable Pin Tooling (RPT) principle. The paper will initially outline some of the theoretical and technical background for the research. These contexts particularly concern tools and innovation environments as well as a brief overview of the history of the RPT concept. A description of the development of the tooling systems through practice-based research is then provided followed by coverage of creative explorations with this new glass-forming method. Based on the results of the research, the author argues that digital fabrication technologies can provide the key toolsets for individual creative practitioners to successfully innovate through their own toolmaking projects. This argument is evidenced by artefacts (glass bowls) produced by the author using the RPT systems developed during the research; these glass bowls have been widely exhibited and received both critical as well as commercial acclaim. The article concludes with observations from this research and reflections on the findings.

An overview of critical success factors for implementing 3D printing technology in manufacturing firms

Additive manufacturing, also known as 3D printing or digital fabrication technology, is a process of accumulating deposited layers to form solid 3D objects from 3D models in digital files. 3D printing technology is a fast-emerging technology. Nowadays, 3D printing technology is successfully applied in shaping the globe and producing most of the products used today, from simple plastics to advanced ceramics and metallics. 3D printing technology can print an object layer by layer, by directly depositing the material using computer software, with only just one click. This paper gives an overview of the Critical Success Factors (CSFs) for 3D printing technology in manufacturing firms. The literature found in this paper is mainly from Emerald Insight, Science Direct, Google Scholar and Additive Manufacturing. Briefly, the list of Critical Success Factors can be divided into nine major factors, which are cost, technology, business and support, management and organisation, materials, quality and accuracy, demand, the environment and lastly, research and development.

An Overview on 3D Printing Technology: Technological, Materials, and Applications

Digital fabrication technology, also referred to as 3D printing or additive manufacturing, creates physical objects from a geometrical representation by successive addition of materials. 3D printing technology is a fast-emerging technology. Nowadays, 3D Printing is widely used in the world. 3D printing technology increasingly used for the mass customization, production of any types of open source designs in the field of agriculture, in healthcare, automotive industry, locomotive industry and aviation industries. 3D printing technology can print an object layer by layer deposition of material directly from a computer aided design (CAD) model. This paper presents the overview of the types of 3D printing technologies, the application of 3D printing technology and lastly, the materials used for 3D printing technology in manufacturing industry.

Digital atomic scale fabrication an inverse Moore's Law – A path to atomically precise manufacturing

Abstract There is an exciting opportunity to start a second digital revolution that will supersede the first digital revolution in information technology (IT) as the primary driver of scientific, technological, and economic growth. This new revolution will be digital fabrication technology. The digital IT revolution has been largely driven by digital algorithms such as error detection and correction and Moore's Law which has given us an exponential trend in product capabilities. However, the longstanding trend in improving manufacturing precision which has enabled Moore's Law simply cannot be continued much longer because we are running into the limits imposed by the quantized nature of matter. At this scale, matter can no longer be treated in an analogue fashion i.e. as an infinitely divisible medium, but must be treated as an integer number of discrete atomic distances, i.e. in a digital fashion. By embracing this digital nature of matter, we can conceive of a digital fabrication technology, where the digital processes are the making and breaking of chemical bonds, there is a digital address grid that is spatial in nature, and error detection and correction processes can be developed. This digital fabrication technology will have the similarly huge advantages over analog fabrication that digital IT has over analog IT. We remind the reader that effective digital technologies are not exclusively digital in their operation. Digital electronics is carried out by analog transistors that are embedded in circuitry designed to accept their output in a digital fashion. Digital fabrication technology is not synonymous with Atomically Precise Manufacturing (APM) but should lead to that important capability. Furthermore this digital fabrication technology will start a new exponential manufacturing trend that will replace Moore's law and will not be just for information processing and therefore will have an even larger impact than Moore's Law. Like any exponential trend Digital Fabrication will start slowly in a few niche markets, but the time for investing in the development of this new technology is now.

Shifting Expectations

As digital fabrication technology has become mainstream, the increased demand for 3D printed objects has created a new market for professional outsourcing. Given that most of this work does not require advanced training, and is an appropriate entry-level manufacturing job, there is an exciting opportunity to employ youth already skilled in "making" and interested in technology to do this work as an after-school job. The combination of this new technology and workforce calls for new workflows that streamline client-driven digital manufacturing. However, the limitations of current digital fabrication technology and youth schedules require that this work be spread between multiple shifts, necessitating employees to coordinate and handoff their work. We investigated the collaborative practices between youth employees while working on client jobs in a 3D print shop during one year of field work. In this paper, we describe instances where youth employees successfully, and unsuccessfully, handed off work between shifts and identify techniques utilized by youth to support successful handoffs, including: counting physical artifacts, using asynchronous chat programs, and documenting work. We then discuss the impact of the print shop manager's presence, physical characteristics of 3D prints, and youth perspectives of work on the selection of and effectiveness of these techniques. Finally, we offer lessons learned from successful handoffs in the print shop and recommendations for supporting youth in collaborative work environments.

Rapid deployment of curved surfaces via programmable auxetics

Deployable structures are physical mechanisms that can easily transition between two or more geometric configurations; such structures enable industrial, scientific, and consumer applications at a wide variety of scales. This paper develops novel deployable structures that can approximate a large class of doubly-curved surfaces and are easily actuated from a flat initial state via inflation or gravitational loading. The structures are based on two-dimensional rigid mechanical linkages that implicitly encode the curvature of the target shape via a user-programmable pattern that permits locally isotropic scaling under load. We explicitly characterize the shapes that can be realized by such structures---in particular, we show that they can approximate target surfaces of positive mean curvature and bounded scale distortion relative to a given reference domain. Based on this observation, we develop efficient computational design algorithms for approximating a given input geometry. The resulting designs can be rapidly manufactured via digital fabrication technologies such as laser cutting, CNC milling, or 3D printing. We validate our approach through a series of physical prototypes and present several application case studies, ranging from surgical implants to large-scale deployable architecture.

Randomized controlled clinical trial of digital and conventional workflows for the fabrication of zirconia-ceramic posterior fixed partial dentures. Part II: Time efficiency of CAD-CAM versus conventional laboratory procedures

Statement of problemClinical trials are needed to evaluate the digital and conventional fabrication technology for providing fixed partial dentures (FPDs). PurposeThe purpose of the second part of this clinical study was to compare the laboratory production time for tooth-supported, 3-unit FPDs by means of computer-aided design and computer-aided manufacturing (CAD-CAM) systems and a conventional workflow. In addition, the quality of the 3-unit framework of each treatment group was evaluated clinically. Material and methodsFor each of 10 participants, a 3-unit FPD was fabricated. Zirconia was used as the framework material in the CAD-CAM systems and included Lava C.O.S. CAD software (3M) and centralized CAM (group L); CARES CAD software (Institut Straumann AG) and centralized CAM (group iT); and CEREC Connect CAD software (Dentsply Sirona) and centralized CAM (group C). The noble metal framework in the conventional workflow (group K) was fabricated by means of the traditional lost-wax technique. All frameworks were evaluated clinically before veneering. The time for the fabrication of the cast, the 3-unit framework, and the veneering process was recorded. In addition, chairside time during the clinical appointment for the evaluation of the framework was recorded. The paired Wilcoxon test together with appropriate Bonferroni correction was applied to detect differences among treatment groups (α=.05). ResultsThe total effective working time (mean ±standard deviation) for the dental technician was 220 ±29 minutes in group L, 217 ±23 minutes in group iT, 262 ±22 minutes in group C, and 370 ±34 minutes in group K. The dental technician spent significantly more time in the conventional workflow than in the digital workflow, independent of the CAD-CAM systems used (P<.001). ConclusionsIrrespective of the CAD-CAM system, the overall laboratory time for the dental technician was significantly less for a digital workflow than for the conventional workflow.