REDUCING WARPING IN ABS 3D PRINTED PARTS THROUGH INFILL MODIFICATION

Additive Manufacturing (AM), or 3D printing, has transformed traditional manufacturing by allowing the layer-by-layer construction of objects from digital models. This study addresses warping in Acrylonitrile Butadiene Styrene (ABS) Fused Filament Fabrication (FFF) by proposing infill structure modification. Using CR-ABS filament and a Prusa i3 MK3+ printer, we investigate three geometric shapes-strip, square, and leaf-via advanced 3D scanning for surface curvature analysis. By intentionally altering infill patterns, we analyze warping mechanisms such as non-uniform shrinkage and anisotropic thermal stress. Auto-leveling and curvature calculations evaluate the impact of modified infill strategies on warpage. Results demonstrate significant reductions in surface warpage, with modified infill structures surpassing default patterns. Improved dimensional stability is evidenced by average and maximum surface deviations alongside curvature measurements. This research offers a robust approach, highlighting the potential of infill modification to enhance reliability and stability in 3D-printed parts. While limited to ABS material and specific shapes, this study marks a substantial advancement in ABS 3D printing precision. The proposed methodology not only effectively reduces warpage but also holds promise for diverse applications across materials and printing technologies. Further research is urged to explore scalability and broader implications, which are essential for a comprehensive understanding and application of infill structure modification in 3D printing. In addressing warping challenges, this study contributes to the evolution of modern manufacturing processes, underscoring the importance of advancing warpage reduction strategies for realizing 3D printing's full potential.