Desenvolvimento de um sistema bobinador de monofilamentos para extrusora

Abstract

Pollution caused by thermoplastic waste is a global scale issue. Recycling is the best option to dispose of this waste. Amongst the recycling types, mechanical recycling is the most widespread one. In this sort of recycling, thermoplastic waste is collected, sorted, washed, dried, shredded, until it goes through the extrusion process, which is capable of producing thermoplastic filaments for 3D printing. The Federal University of Technology – Paraná generates thermoplastic waste, which if transformed can supply the demand for filament for 3D printing. There is already an extruder in the university capable of producing this type of filament, however the lack of some peripherals for the equipment impairs its productivity and operating capacity. This work aimed to develop one of these peripherals, a winder, for the extruder, dedicated to the production of thermoplastic filaments. The extrusion process and 3D printing filaments are reviewed, as well as existing commercial and open-source winders. An opensource hardware design methodology was adopted for the project, yielding a functional prototype, which was then tested and approved. Finally, the project was shared on the internet as an open-source development. Until the date of this work, over 400 downloads of the project had been made.