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1 2015

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Przegląd dostępnego oprogramowania do sterowania ścieżką pracy głowicy dla personalnych drukarek przestrzennych

Olejarczyk M., Gruber K., Ziółkowski G.

Technical Issues

2015

nr 3

48--55

Personal 3D printers, based on fused deposition modeling (FDM) technology, established a relatively new category in Additive Manufacturing (AM) systems. Adding material layer by layer allows to manufacture complex parts at low cost. Recent dynamic demand growth in this segment forced 3D printer manufacturers to simultaneously develop machines and dedicated software, which enables to convert CAD 3D model to toolhead path control codes (G-code). The work presented in this paper compares currently available 3D printers software: Cura, Slic3r, Voxelizer, Matter Control. The aim of presented study was to investigate dimensions and shape precision of test specimens using computed tomography (CT). Specimens used in the study were designed to capture a representative set of geometrical features for comparison. Specimens were made of PLA (polylactide), a widely used FDM material, on Hbot 3D (personal 3D printer from 3D Printers Ltd, Poland). CT systems enable to measure external and internal dimensions with high precision. In the study, analysis of specimens external geometry, including diameters, distances and angles measurement, was performed. Standard deviation was estimated through comparison of reference values from CAD model with measurement results. In order to analyze the internal geometry, cross-section verification was done. The fundamental result of the paper demonstrates the influence of different 3D printer software on geometrical accuracy. Although the most important process parameters for each software were set up in the same way, there were significant differences between the models. Based on these results, it is concluded that the best results were obtained using Cura software.