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Article
Publication date: 17 August 2015

Garrett W. Melenka, Jonathon S. Schofield, Michael R. Dawson and Jason P. Carey

– This paper aims to evaluate the material properties and dimensional accuracy of a MakerBot Replicator 2 desktop 3D printer.

2917

Abstract

Purpose

This paper aims to evaluate the material properties and dimensional accuracy of a MakerBot Replicator 2 desktop 3D printer.

Design/methodology/approach

A design of experiments (DOE) test protocol was applied to determine the effect of the following variables on the material properties of 3D printed part: layer height, per cent infill and print orientation using a MakerBot Replicator 2 printer. Classical laminate plate theory was used to compare results from the DOE experiments with theoretically predicted elastic moduli for the tensile samples. Dimensional accuracy of test samples was also investigated.

Findings

DOE results suggest that per cent infill has a significant effect on the longitudinal elastic modulus and ultimate strength of the test specimens, whereas print orientation and layer thickness fail to achieve significance. Dimensional analysis of test specimens shows that the test specimen varied significantly (p < 0.05) from the nominal print dimensions.

Practical implications

Although desktop 3D printers are an attractive manufacturing option to quickly produce functional components, this study suggests that users must be aware of this manufacturing process’ inherent limitations, especially for components requiring high geometric tolerance or specific material properties. Therefore, higher quality 3D printers and more detailed investigation into the MakerBot MakerWare printing settings are recommended if consistent material properties or geometries are required.

Originality/value

Three-dimensional (3D) printing is a rapidly expanding manufacturing method. Initially, 3D printing was used for prototyping, but now this method is being used to create functional final products. In recent years, desktop 3D printers have become commercially available to academics and hobbyists as a means of rapid component manufacturing. Although these desktop printers are able to facilitate reduced manufacturing times, material costs and labor costs, relatively little literature exists to quantify the physical properties of the printed material as well as the dimensional consistency of the printing processes.

Details

Rapid Prototyping Journal, vol. 21 no. 5
Type: Research Article
ISSN: 1355-2546

Keywords

Article
Publication date: 1 May 1983

In the last four years, since Volume I of this Bibliography first appeared, there has been an explosion of literature in all the main functional areas of business. This wealth of…

16294

Abstract

In the last four years, since Volume I of this Bibliography first appeared, there has been an explosion of literature in all the main functional areas of business. This wealth of material poses problems for the researcher in management studies — and, of course, for the librarian: uncovering what has been written in any one area is not an easy task. This volume aims to help the librarian and the researcher overcome some of the immediate problems of identification of material. It is an annotated bibliography of management, drawing on the wide variety of literature produced by MCB University Press. Over the last four years, MCB University Press has produced an extensive range of books and serial publications covering most of the established and many of the developing areas of management. This volume, in conjunction with Volume I, provides a guide to all the material published so far.

Details

Management Decision, vol. 21 no. 5
Type: Research Article
ISSN: 0025-1747

Keywords

Article
Publication date: 1 March 1985

Life is made up of debits and credits, as Kipling wrote, long accounts have to be paid — mistakes, misconduct, misdeeds, all the mischief and harm they cause, exact payment which…

Abstract

Life is made up of debits and credits, as Kipling wrote, long accounts have to be paid — mistakes, misconduct, misdeeds, all the mischief and harm they cause, exact payment which has to be met by someone, not necessarily those that cause the trouble; all too often by innocent victims. The recent industrial strife, destruction and violence, despite the plausible excuses for it, will have disastrous results, a colossal debit in the nation's accounts; and the mass of the people, the vulnerable groups including several millions of elderly pensioners, the handicapped and sick, are under no illusions who will have to pay. The posturing defiance — “heads held high”, bands playing martial music — the complete lack of concern or regret for others will make no difference to the overtaking retribution.

Details

British Food Journal, vol. 87 no. 3
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 4 December 2017

Tom Mordue

In recent decades western cities have slowly evolved to extend their cultural offer to “the postmodern mixing of public and commercial culture” (Richards, 2014, p. 120) as a major…

1937

Abstract

Purpose

In recent decades western cities have slowly evolved to extend their cultural offer to “the postmodern mixing of public and commercial culture” (Richards, 2014, p. 120) as a major plank of urban regeneration and development strategies. Urban tourism has been central to this and tourists are now an ever present temporary population of cultural consumers in so many of our towns and cities, even in those industrial cities that until recently would not have been imagined as tourist places. Tourism is thus a part of everyday urban life (Urry, 2002) whether we gaze on tourists going from one cultural space to another in our home towns or whether we ourselves are transformed into tourists as we conduct our cultural consumption in places distant to our usual workaday lives. This research note considers the impact such consumption is having on our urban centres. The purpose of this paper is to critically reflect on the way our urban centres are managed, who the urban citizen now is, and in what direction could tourism research take to shed further light on the way we manage, create and reproduce urban life in the increasingly diverse postmodern city.

Design/methodology/approach

The paper is a critical reflection on urban tourism and offers a future research orientation.

Findings

The argument is that in light of new mobilities urban tourism research needs to be more politically reflexive than it often is.

Research limitations/implications

There is no empirical research content so this does not apply.

Practical implications

The practical implications are that urban tourism research should be about making cities better places and not simply about being policy performing vehicles in a politically light sense.

Originality/value

The originality of this piece is in the way it mixes urban studies, social theory and tourism studies together to come out with a view and argument on a way forward in researching tourism and cities.

Details

International Journal of Tourism Cities, vol. 3 no. 4
Type: Research Article
ISSN: 2056-5607

Keywords

Book part
Publication date: 21 December 2010

Gregory Jeffers, Rashawn Ray and Tim Hallett

Methodological traditions are like any other social phenomena. They are made by people working together, criticizing one another, and borrowing from other traditions. They are…

Abstract

Methodological traditions are like any other social phenomena. They are made by people working together, criticizing one another, and borrowing from other traditions. They are living social things, not abstract categories in a single system.– Andrew Abbott (2004, p. 15)

Details

New Frontiers in Ethnography
Type: Book
ISBN: 978-1-84950-943-5

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