Abstract: This invention relates to a filament dispensing assembly for 3D printed objects that could manufacture particular products of excellent quality and high quantity according to its programmed specifications or special features. The filament dispensing assembly for 3D printed objects generally comprises an electric motor, a feeding roller being driven by the electric motor, a pressure wheel parallely provided with the feeding roller, a cooling fin jacketed filament tube being provided below said feeding roller, a heater being provided at the bottom end of the cooling fin jacketed tube, a dispensing nozzle being provided below said heater, and a cooling fan being provided at the lower side of the assembly and facing said heater. The feeding roller is characterized by its abrasive surface.