Rapid Manufacturing (RM) is an Additive Layer Manufacturing Process (ALMP) where intricate engineered models are prepared from their Computer Aided Design (CAD) models by addition of material in a layered fashion. With Increasing key emerging technologies rapid manufacturing has gained much focus in the modern era. Additive manufacturing process named Fused Deposition Modeling (FDM) has remarkable applications in several industries. This paper analyses the influence of the input experimental parameters viz. infill density, layer thickness and support style on response parameters viz. build time of part and Surface roughness on Acrylonitrile Butadiene Styrene (ABS) polymer. Taguchi’s L8 Orthogonal Array (OA) design is used perform the experiments. Analysis of Variance (ANOVA) is established to understand the significant characteristics of the process variables. The set of input variables has been determined for individual output response variable.