additive manufacturing (FDM) silumation by Comsole

Hi there
Recently i strated to work with comsole multiphysics for FDM simulation ( FUSED DEPOSITION MODELING).
My objectif is to simulate deposition of a melted polymer, and measuring different properties of deposed filaments.
can any body lnow how to simulate deposition process? Indeed for this simulation we dont have a part and during the process we depose and print our part.could anybody help me or we can use this frum as a brainstorming to find the solutions.
thanks all