Entry level RP machines: How well can they cope with geometric complexity

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dc.contributor.author Pei, Eujin en
dc.contributor.author Campbell, R. I. en
dc.contributor.author de Beer, Deon en
dc.date.accessioned 2012-06-07T09:16:51Z
dc.date.available 2012-06-07T09:16:51Z
dc.date.issued 2011
dc.identifier.citation Pei, E., Campbell, R.I. and de Beer, D. (2011) Entry Level RP Machines: How Well Can They Cope With Geometric Complexity? Journal of Assembly Automation, 31 (2) pp. 153 - 160 en
dc.identifier.issn 0144-5154
dc.identifier.uri http://hdl.handle.net/2086/6115
dc.description.abstract Purpose – The purpose of this paper is to examine the limitations of entry-level rapid prototyping (ELRP) machines when fabricating objects with high complexity. Design / methodology / approach – The literature review provides an overview of RP technologies, followed by a discussion on the different levels of complexity in objects. The paper continues with a discussion on the definition of ELRP, followed by a number of experiments to explore the limitations of an ELRP system when fabricating complex models, and to compare the results obtained with those from a professional RP machine using standardised build parameters and the same acrylonitrile butadiene styrene material. Findings – Of the five complex models that were produced from the Rapman machine, four of them were affected by warping; also, support structures were difficult to remove due to the interwoven build pattern. The study also found that the Rapman parts were coarsely built as opposed to the Dimension parts that were less coarse. The Rapman parts were also much lighter due to the hollow internal structure, as compared to the dimension parts that were virtually solid. From a quantitative viewpoint, parts produced from the Rapman machine showed significantly greater average errors in both absolute and percentage terms. Practical implications – Users should bear in mind the restrictions of ELRP machines when fabricating complex shapes. The models may be prone to warping and the support structures could be difficult to remove. Originality / value – This paper allows developers to understand the restrictions when fabricating complex models on an ELRP machine. The findings will also enable manufacturers to develop better entry-level systems. en
dc.language.iso en en
dc.publisher Emerald en
dc.subject manufacturing systems en
dc.subject rapid prototypes en
dc.title Entry level RP machines: How well can they cope with geometric complexity en
dc.type Article en
dc.identifier.doi http://dx.doi.org/10.1108/01445151111117737
dc.researchgroup Interactive and Media Technologies
dc.researchgroup Digital Building Heritage Group
dc.peerreviewed Yes en
dc.ref2014.selected 1366193730_0711521602522_34_3

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