Existing Patents Include:
a) CN106945265B - "The invention aims to provide a 3D printer for recycling plastic for 3D printing, and the printing quality is ensured."
b) KR102369306B1 - "The present invention relates to an apparatus and method for regenerating a filament for a 3D printer, and more particularly, to an apparatus for melting a crushed material of a plastic material produced by a 3D printer, extruding it into a regenerated filament, cooling it and winding it on a reel, the winding state It relates to a filament recycling apparatus and method for a 3D printer that can be stably wound on a reel by adjusting the winding speed according to the present invention"
c) KR20200000250U / KR20200010641A - "The present invention is a mobile type of machine for recycling 3D filament to recycle waste plastic and make the filament using a 3D printer, etc. More specifically, disposable plastic, such as disposable cups, PET bottles, etc. It is a machine that allows the machine to experience washing or drying at once, drying> grinding> filament manufacturing (processing)> using a 3D printer> producing items."
d) KR102369306B1 - "The present invention relates to an apparatus and method for regenerating a filament for a 3D printer, and more particularly, to an apparatus for melting a crushed material of a plastic material produced by a 3D printer, extruding it into a regenerated filament, cooling it and winding it on a reel, the winding state It relates to a filament recycling apparatus and method for a 3D printer that can be stably wound on a reel by adjusting the winding speed according to the present invention."
Existing Technology (patent unknown):
a) Petamentor2 : DIY solution involving a method to rip the PET bottles into strips for easy extrusion.
b) mr3dp At Home Solution: YouTube video describing steps to recycle PET bottles into 3D printer filament at home.
c) CNC Kitchen: YouTube video detailing a DIY way to turn used PET bottles into 3D printer filament.
Standards:
Safety - ASTM F963-17
Includes testing methods aimed at ensuring that the amount of heavy metals and other restricted substances present in
toys, their materials, or components do not exceed the set limits. Such substances include lead, cadmium, and phthalates.
Recycling - ISO 15270
Provides guidelines for the recycling of plastics, including PET, and includes recommendations for processing and quality control.
Material - ASTM D5033
Defines test methods for determining the density and specific gravity of plastics, including PET.