Abstract
Additive manufacturing technology is widely being used for the prototype of parts or products by ease and low cost compared to casting and subtractive manufacturing. Especially FFF (Fused Filament Fabrication) method is mainly used not only for industrial prototype but also emerging in commercial products for comparably low costs and difficulties in post processing. But dimensional accuracy of FFF method is lower than other additive manufacturing methods since laminating of layer is processed at high temperature. To increase the dimensional accuracy of FFF method, studies were carried out about factors causing dimensional errors on parts (layer height, infill percentage, heating bed temperature etc.). In this study, the dimensional accuracy of parts made by additive manufacturing with the FFF method is investigated. The main goal of this study is to check whether the varying printing time of each layer affects the dimensional accuracy of parts when multiple parts are printed at once. Models having identical planar shapes but various heights are printed and investigated. The ABS was used as the filament material for the additive manufacturing.
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