3D Printed Filament Recycling Machine

This 3D printing waste recycler melts, extrudes, and spools recycled filament, achieving a diameter of approximately 1.75mm. Employ a 0.2mm layer height, tree support structure, and grid support pattern. Crucially, this model is only suitable for P1S and X1C printers; otherwise, the hopper section will fail to print. Waste material must be shredded and thoroughly dried before extrusion. Using a 70W heating element, maintain a temperature between 145° and 150°C. The central heating tube must not be aluminum; otherwise, heat transfer will melt the filament before it enters the tube. Temperature measurement requires a thermocouple capable of reading up to 450°C; thermistors or 100°C controllers are unsuitable. The extrusion section requires high-temperature PTFE tape to prevent filament leakage, and the extrusion nozzle must utilize a British Standard Pipe (BSP) thread tap. All aluminum components should also use BSP threads. The spindle has a small pointed screw that requires removal and smoothing using an angle grinder. Ensure correct polarity for the stepper motor driver boards. This recycler presents minimal challenges to those familiar with its assembly; assistance is available for novices.

Bill of Materials: Three NEMA 17 stepper motors, one 60mm long stepper motor with a 51:1 reduction gear, four stepper motor driver boards, one Arduino Uno, two 70W heating elements, three 50mm fans, various amounts of thermal insulation, one thermocouple temperature controller, G3/8 male to M6 female brass adapter, 1.5mm nozzle, T8 200mm lead screw, 300mm stepper motor belt, five 8mm flexible couplings, 2060x60cm European standard aluminum profile, 2020 European standard aluminum profile, various right-angle brackets and corner connectors, 12V 10A DC power supply, high-temperature PTFE tape, 16x300mm spindle drill and 20mm OD 16mm ID, 200mm long steel pipe, one 20mm ID fixing clamp, G3/8-19 BSP thread tap, 20mm ID 100mm long aluminum square tube, two 10k potentiometers, four 17x6mm outer diameter bearings. Stepper motors and fasteners use M3 hex socket screws; brackets use M4 hex socket screws.