• Deepak D. Agalave
• Rushikesh J. Chavan
• Shubham B. Dalvi
• Aviraj S. Chougule
• Tohid S. Kudchikar, Dipak A. Sawant

Fused deposition modeling (FDM) is most efficient method to print products with high complexity. The most vital parameters for FDM are infill density, infill pattern, layer thickness, printing speed, printing orientation, nozzle temperature and diameter. This study will investigate the effect of varying parameters on shrinkage of 3D printed objects. The parameters selected for this study are- infill percentage, layer thickness and printing speed. A Taguchi array of 64 combinations of these parameters is obtained using Minitab software. Polylactic acid (PLA) material is used to print the 3D objects using all the combinations of printing parameters form the array. The object is designed using computer aided design (CAD) software. The object selected for printing is cuboid with circular hole at center, to demonstrate the shrinkage in both, linear dimensions as well as circular dimension. The printer used for this entire study is Creality 10S Pro. At the end, this study will provide a generalized equation for the dimensions based on actual obtained data, which can be used to determine the dimension of object theoretically before fabricating it, thus we can provide the necessary shrinkage allowance to the design of model.

fused deposition modeling, additive manufacturing, polylactic acid, Taguchi L64 Array, 3D printing.

"Investigation of Shrinkage Variation in 3D Printed Models", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.98-103, August-2022, Available :http://www.jetir.org/papers/JETIRFQ06021.pdf

"Investigation of Shrinkage Variation in 3D Printed Models", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. pp98-103, August-2022, Available at : http://www.jetir.org/papers/JETIRFQ06021.pdf