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CREATING AN OPEN-SOURCE, LOW-COST COMPOSITE FEEDER DESIGN TO IMPROVE FILAMENT QUALITY OF HIGH-PERFORMANCE MATERIALS TO BE USED IN FUSED FILAMENT FABRICATION (FFF)

Published online by Cambridge University Press:  19 June 2023

Henrik H. Øvrebø ,
Svein-Andre Koldre ,
Ole S. Nesheim ,
Sindre Wold Eikevåg ,
Martin Steinert  and
Christer W. Elverum
Henrik H. Øvrebø
Affiliation:
NTNU
Svein-Andre Koldre
Affiliation:
NTNU
Ole S. Nesheim*
Affiliation:
NTNU
Sindre Wold Eikevåg
Affiliation:
NTNU
Martin Steinert
Affiliation:
NTNU
Christer W. Elverum
Affiliation:
NTNU
*
Nesheim, Ole S., NTNU, Norway, ole.s.nesheim@ntnu.no

Abstract

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Composite filaments are getting increased attention in additive manufacturing (AM). More and better solutions for filament production are needed to assist researchers in discovering new materials capable of producing AM-made high-performance parts. This article presents a method for producing composite filament, including an open-source, low-cost automatic composite feeder designed to increase the accuracy and quality of the filament. The feeder includes a fibre screw designed through an iterative prototyping process to accurately control the filament's fibre percentage while reducing lumps' occurrence in a single step. An experiment evaluating the quality of filament made of Polylactic Acid (PLA) and carbon fibre (CF) tested the use of the feeder compared to manual mixing. Filament with a nominal diameter of 2.85mm with 4.5%, 7.9%, 11.2% and 14.5% CF was made. The results suggest that the composite feeder improved the filament quality. The filament diameter RMSE value was reduced from 0.08 to 0.06 and 0.15 to 0.13 for both 4.5% and 11.2%, respectively. The article concludes that the feeder design may help researchers develop and discover new materials while improving the quality of the filament.

Keywords

Additive ManufacturingOpen source designSustainabilityRecyclingComposite materials
Type
Article
Information
Proceedings of the Design Society , Volume 3: ICED23 , July 2023 , pp. 1097 - 1106
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work.
Copyright
The Author(s), 2023. Published by Cambridge University Press

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