Build Time Estimation Models in Thermal Extrusion Additive Manufacturing Processes

In this study, two build time estimation models (analytical and empirical) for the Material Extrusion (ME) - Fused Deposition Modelling (FDM) Additive Manufacturing (AM) process have been developed. Both models have been validated through a set of experimental case studies. The inputs required for the models include the G-Code, the volume of the part and experimentally defined coefficients related to the AM equipment. Both models are fast to run, simple in their use and provide very accurate results, since the acceleration and deceleration of the machine head is also taken into account, the effect of which play an important role in the final time estimation. The results retrieved from the analytical models are the most accurate. The outcomes of the current study are expected to assist in better production planning and energy efficiency issues related to FDM - AM processes.