Abstract
Stereolithography (SLA) is an Additive Manufacturing technology which converts liquid resins to solid parts layer-by-layer by selectively curing the liquid resin using a (laser) light source. The mechanical properties SLA 3D printed parts are not yet determined or estimated before printing. Thus, this study aims to identify the optimum 3D printing configuration based on the indentation hardness properties of SLA-printed polymer parts. Taguchi approach was used in identifying the optimum 3D printing configuration wherein different factors were considered to meet the requirements of the orthogonal arrays. Five pieces of 3D printed test blocks with 9 indentation points on the surface were prepared for each factor. The tests followed ASTM D785 – 03 using Rockwell Scale B. The result for the optimum 3D printing configuration of SLA 3D printed material were concluded as the values with the highest Rockwell Hardness Number.
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