Projeto e construção de uma mini extrusora de filamentos

Abstract

This present work approach the principles of polymers processing for filaments making e sizing of a extruder equipment. It reports formulas and primordial concepts for the beginning of the project, kinds of polymers that are used and comercialized as raw material for 3D printing, forms and varieties of screw threads recommended for each polymer, the designed extrusion temperature for each material to be extruded, and also the complete sizing of all equipment phases. The project covers the making of the mini extruder, tests and improvements for future works, and it has as main purpose the use of the equipment in UTFPR - Pato Branco campus, with the objective of minimizing outgoing in the campus by producing its own filaments that will be used in the 3D printers that are already disposed and/or will be acquired. It resulted in filament diameters between 1.6 and 2.2 mm, with proximity to the commercially sold validating its construction.