Suitability of Recycled PLA Filament Application in Fused Filament Fabrication Process

Tomislav Breški, Lukas Hentschel, Damir Godec, Ivica Duretek

Research output: Contribution to journalArticleResearchpeer-review


Fused filament fabrication (FFF) is currently one of the most popular additive manufacturing processes due to its simplicity and low running and material costs. Support structures, which are necessary for overhanging surfaces during production, in most cases need to be manually removed and as such, they become waste material. In this paper, experimental approach is utilised in order to assess suitability of recycling support structures into recycled filament for FFF process. Mechanical properties of standardized specimens made from recycled polylactic acid (PLA) filament as well as influence of layer height and infill density on those properties were investigated. Optimal printing parameters for recycled PLA filaments are determined with Design of Experiment methods (DOE).
Original languageEnglish
Pages (from-to)491-497
Number of pages7
JournalTechnical journal : scientific professional journal of University North
Issue number4
Publication statusPublished - 2021

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