Same source profiling of 3D printed firearms using deposition striae: a discussion

Steven Pavlovich

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


3D printer technologies using polymer and polymer/hybrid filament materials are being used to construct illicit firearm components with strength and longevity using low cost fused deposition modelling (FDM) printers. This preliminary discussion poses the question, can deposition x, y, and z-axis layers created by additive manufacturing (AM) technology produce visible layering and surface characteristics upon a 3D FDM manufactured object which have the potential for examination to extract characteristics suitable for forensic comparison? The examination and analysis of deposition layers (striae) based upon the mechanical variation of 3D printers has not been fully investigated and the illegal adaption of 3D print FDM technology for the prolific manufacture of firearm components demands further study. A summation of possible examination techniques and suggested directions for further research may assist in developing a better forensic response for the examination of 3D FDM printed polymer and polymer/hybrid components.

Original languageEnglish
Pages (from-to)96-104
Number of pages9
JournalAustralian Journal of Forensic Sciences
Issue number1
Early online date16 Oct 2022
Publication statusPublished - 2024


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