Analysis and discussion on the efficiency and feasibility of downsizing an FDM printer

Abstract

This thesis discusses a downsized fused deposition modeling (FDM) extruder, namely the E3D~HotEnd extruder. The nozzle has been simulated in terms of heat transfer and fluid flow. These simulations have been calibrated with an experimental setup in reality giving a significant look into the physical behavior of the nozzle, heating and cooling systems. Experiments on the model were performed at different sub-mm diameters. Physical parameters of the model - especially temperature dependent parameters - were set into analytical relationships in order to receive dynamical parameters. Hereby, the thesis contributes to the development of FDM and downsizing of FDM production as well as reduction of surface roughness parameters.