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Article
Publication date: 28 January 2020

Nicholas R. Fry, Robert C. Richardson and Jordan H. Boyle

This paper aims to present a multi-axis additive robot manufacturing system (ARMS) and demonstrate its beneficial capabilities.

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Abstract

Purpose

This paper aims to present a multi-axis additive robot manufacturing system (ARMS) and demonstrate its beneficial capabilities.

Design/methodology/approach

ARMS was constructed around two robot arms and a fused filament fabrication (FFF) extruder. Quantitative experiments are conducted to investigate the effect of printing at different orientations with respect to gravity, the effect of dynamically changing build orientation with respect to the build tray when printing overhanging features, the effect of printing curved parts using curved, conformal layers. These capabilities are combined to print an integrated demonstrator showing potential practical benefits of the system.

Findings

Orientation with respect to gravity has no effect on print quality; dynamically changing build orientation allows overhangs up to 90° to be cleanly printed without support structures; printing an arch with conformal layers significantly increases its strength compared to conventional printing.

Research limitations/implications

The challenge of automatic slicing algorithms has not been addressed for multi-axis printing. It is shown that ARMS could eventually enable printing of fully-functional prototypes with embedded components.

Originality/value

This work is the first to prove that the surface roughness of an FFF part is independent of print orientation with respect to gravity. The use of two arms creates a novel system with more degrees of freedom than existing multi-axis printers, enabling studies on printing orientation relationships and printing around inserts. It also adds to the emerging body of multi-axis literature by verifying that curved layers improve the strength of an arch which is steeply curved and printed with the nozzle remaining normal to the curvature.

Details

Rapid Prototyping Journal, vol. 26 no. 4
Type: Research Article
ISSN: 1355-2546

Keywords

Available. Open Access. Open Access

Abstract

Details

Journal of Intelligent Manufacturing and Special Equipment, vol. 4 no. 1
Type: Research Article
ISSN: 2633-6596

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Book part
Publication date: 9 May 2024

Freda Gonot-Schoupinsky, Merv Neal and Jerome Carson

Abstract

Details

The Positive Psychology of Laughter and Humour
Type: Book
ISBN: 978-1-83753-835-5

Available. Content available
Book part
Publication date: 30 June 2020

Peter Williams

Free Access. Free Access

Abstract

Details

Learning Disabilities and e-Information
Type: Book
ISBN: 978-1-78973-152-1

Available. Content available
Book part
Publication date: 30 June 2023

Lisa M. Given, Donald O. Case and Rebekah Willson

Free Access. Free Access

Abstract

Details

Looking for Information
Type: Book
ISBN: 978-1-80382-424-6

Available. Content available
Book part
Publication date: 26 November 2016

Karin Klenke

Free Access. Free Access

Abstract

Details

Qualitative Research in the Study of Leadership
Type: Book
ISBN: 978-1-78560-651-9

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Book part
Publication date: 7 June 2016

Amal Ahmadi, Bernd Vogel and Claire Collins

We take an affect-based approach to theoretically introduce and explore the knowing-doing gap of leadership. We focus on the emotion of fear that managers may experience in the…

Abstract

Purpose

We take an affect-based approach to theoretically introduce and explore the knowing-doing gap of leadership. We focus on the emotion of fear that managers may experience in the workplace, and how it may influence the transfer of their leadership knowledge into leadership action.

Methodology/approach

We use Affective Events Theory as our underlying theoretical lens, drawing on emotional, cognitive, and behavioral mechanisms to explain the role of fear in the widening and bridging of the knowing-doing gap of leadership.

Findings

We theoretically explore the interplay between leader fear, the leadership contexts, and the knowing-doing gap of leadership. From this, we develop a multidimensional theoretical framework on the influence of leader fear on the knowing-doing gap of leadership.

We highlight how fear and the knowing-doing gap of leadership may be influenced by and potentially impact on individual managers and their leadership contexts.

Originality/value

Our initial theoretical framework provides a starting point for understanding fear and the knowing-doing gap of leadership. It has implications for future research to enhance our understanding of the topic, and contributes toward existing approaches on leadership development as well as emotions and leadership.

Details

Emotions and Organizational Governance
Type: Book
ISBN: 978-1-78560-998-5

Keywords

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Article
Publication date: 1 May 1986

The big changes over recent years and their rapid development in Food Retailing have resulted in different shopping practices, for the institution, the hotel, restaurant and the…

176

Abstract

The big changes over recent years and their rapid development in Food Retailing have resulted in different shopping practices, for the institution, the hotel, restaurant and the home. Different cuisines have developed, foods purchased, both in cooking practices and eating habits, especially in the home. Gone are the old fashioned home economics, taking with them out of the diet much that was enjoyed and from which the families benefitted in health and stomach satisfaction. In very recent times, the changes have become bigger, developments more rapid, and the progress continues. Bigger and bigger stores, highly departmentalised, mechanical aids of every description, all under one roof, “complex” is an appropriate term for it; large open spaces for the housewife with a car. The development is in fact aimed at the bulk buyer — rapid turnover — the small household needs, not entirely neglected, but not specially catered for. Daily cash takings are collosal. This is what the small owner‐occupied general store, with its many domestic advantages, has come to fall in the late twentieth century.

Details

British Food Journal, vol. 88 no. 5
Type: Research Article
ISSN: 0007-070X

Available. Open Access. Open Access
Article
Publication date: 24 October 2018

Simon Wakeling, Valerie Spezi, Jenny Fry, Claire Creaser, Stephen Pinfield and Peter Willett

The purpose of this paper is to provide insights into publication practices from the perspective of academics working within four disciplinary communities: biosciences…

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Abstract

Purpose

The purpose of this paper is to provide insights into publication practices from the perspective of academics working within four disciplinary communities: biosciences, astronomy/physics, education and history. The paper explores the ways in which these multiple overlapping communities intersect with the journal landscape and the implications for the adoption and use of new players in the scholarly communication system, particularly open-access mega-journals (OAMJs). OAMJs (e.g. PLOS ONE and Scientific Reports) are large, broad scope, open-access journals that base editorial decisions solely on the technical/scientific soundness of the article.

Design/methodology/approach

Focus groups with active researchers in these fields were held in five UK Higher Education Institutions across Great Britain, and were complemented by interviews with pro-vice-chancellors for research at each institution.

Findings

A strong finding to emerge from the data is the notion of researchers belonging to multiple overlapping communities, with some inherent tensions in meeting the requirements for these different audiences. Researcher perceptions of evaluation mechanisms were found to play a major role in attitudes towards OAMJs, and interviews with the pro-vice-chancellors for research indicate that there is a difference between researchers’ perceptions and the values embedded in institutional frameworks.

Originality/value

This is the first purely qualitative study relating to researcher perspectives on OAMJs. The findings of the paper will be of interest to publishers, policy-makers, research managers and academics.

Details

Journal of Documentation, vol. 75 no. 1
Type: Research Article
ISSN: 0022-0418

Keywords

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Book part
Publication date: 1 January 2005

Lan Xia and Kent B. Monroe

Abstract

Details

Review of Marketing Research
Type: Book
ISBN: 978-0-85724-723-0

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