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Towards the democratisation of design: Exploration of variability in the process of filament deposition modelling in desktop additive manufacture

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationTransdisciplinary Engineering Methods for Social Innovation of Industry 4.0
Subtitle of host publicationProceedings of the 25th ISPE Inc. International Conference on Transdisciplinary Engineering
EditorsNel Wognum, Josip Stjepandic, Marcello Pellicciari, Cees Bil, Margherita Peruzzini
Publisher or commissioning bodyIOS Press
Number of pages10
ISBN (Electronic)9781614994398
DatePublished - 1 Jan 2018
Event25th ISPE International Conference on Transdisciplinary Engineering 2018 - Modena, Italy
Duration: 3 Jul 20186 Jul 2018

Publication series

NameAdvances in Transdisciplinary Engineering


Conference25th ISPE International Conference on Transdisciplinary Engineering 2018


This paper seeks to increase the knowledge surrounding the Filament Deposition Modelling (FDM) process by eliciting the variability in mechanical properties of printed parts. These findings are then applied in a manner that would permit the design and manufacture of parts with reliable properties. In doing this, this paper first indentifies the need to better understand the FDM manufacturing process and then defines and contextualises the work with respect to the democratisation of design and trans-disciplinary engineering. It then reviews existing literature that covers the mechanical properties of parts manufactured via FDM. Results from tensile tests showed a large variation (17%) in Ultimate Tensile Stength (UTS) of identical parts. Given this variation the paper explores whether relationships exist between mechanical properties and other part properties as a means to non-destructively determine a manufactured part’s UTS. As a consequence of null hypothesis regarding the aforementioned relationships, fluctuations in extruder temperature are identified as a possible cause for the high variability and subsequently characterised via thermal imaging. This characterisation reveals a correlation between variation in UTS and temperature fluctuations that is found to be consistent with existing literature. Correspondingly, data from the tensile tests is presented as a statistical model that can be used to predict confidence in manufacturing a part with acceptable mechanical properties.

    Research areas

  • Additive Manufacture, Democratisation of Design, Design for Additive Manufacture, Fused Deposition Modelling, Mechanical Properties


25th ISPE International Conference on Transdisciplinary Engineering 2018

Duration3 Jul 20186 Jul 2018
SponsorsInternational Society of Transdisciplinary Engineering (ISTE) (External organisation), IOS Press (External organisation), PROSTEP AG (External organisation), University of Modena and Reggio Emilia (External organisation)

Event: Conference


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