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Mechanical characteristics of the produced materials through additive manufacturing (AM) are influenced by a multitude of parameters. In particular, Free Filament Fabrication (FFF) is one of the most adopted technologies due to low machine cost and its simplicity. In recent years, a lot of printer manufacturers emerged as well as many printer control software. This proliferation led to the development of non-standardized ways of printing, such as different machines architecture or software algorithms to control the printing process: in this way, the object produced with a combination of a printer and software is rarely directly comparable (in terms of mechanical characteristics) with the same object produced using a different combination. This work aims to investigate possible variations in material mechanical properties due to different combinations of printers and filament manufacturers: to do so, different makers in Parma area have been involved to produce specimens with their equipment maintaining the same geometry and identical printing settings.

A territorial round-robin experiment for the evaluation of mechanical properties of FDM PLA produced by distributed facilities