Fused deposition modelling is an additive manufacturing (AM) technique that aids in creating complicated components that are affected by numerous process variables. The primary goal is to experimentally assess the Shore D hardness and Izod impact of test specimens made using 3D printing technology. The test specimens were created while taking into account a variety of printing variables, including infill density, part orientation, and printing patterns. Three part orientations edge, vertical, and flat; three infill patterns grid, rectilinear, and cubic—and an infill density range of 60% to 100% were used to create the specimens. The test specimens were created using a full factorial experimental design which resulted into 27 experimental runs. The highest impact strength (1913 J/m) and Shore D hardness of 47 are obtained for 100% infill density, cubic infill structure, and flat printing orientation, while the lowest impact strength (415 J/m) and Shore D hardness of 46 are obtained for 60% infill density, grid infill structure, and vertical printing orientation. The study demonstrates that process factors have an influence on the Izod Impact strength and Shore D hardness of FDM produced ABS objects.