Instrumented open-source filament extruder for research and education

Published: 2 September 2022| Version 5 | DOI: 10.17632/2fp47vg2w9.5


Extruders are necessary equipment for 3D filament manufacturing, which is considered a clean technology, because it has less scrap and can reuse materials, increasing its life cycle. Open-source extruders are less expensive than industrial extruders. However, they have little instrumentation, which limits the analysis of the processing and, consequently, the development of new materials, screw design and process control. Therefore, this project aims to develop a low-cost extruder with a high degree of instrumentation. To achieve this, equipment with a circuit board was developed, with modularity, machine and peripherals control, process stability, and data acquisition. To validate the equipment, the processing was done at constant temperature and with flow variation. The data obtained were temperatures in different points of the barrel, the rotation speed of the extruder motor, current consumed by the motor and by the resistances, and the speed of the puller motor. Thermal images of the components were taken during processing, validating the type of material used in the parts manufactured by additive manufacturing. The ABS filament produced was analyzed by flow and surface analysis using a confocal microscope.



Universidade Estadual Paulista Julio de Mesquita Filho - Campus de Guaratingueta


Materials Processing, Materials Characterization, Engineering Drawing