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In order to assist researchers explore the full potential of distributed recycling of post-consumer polymer waste, this article describes a recyclebot, which is a waste plastic extruder capable of making commercial quality 3-D printing filament. The device design takes advantage of both the open source hardware methodology and the paradigm developed by the open source self-replicating rapid prototyper (RepRap) 3-D printer community. Specifically, this paper describes the design, fabrication and operation of a RepRapable Recyclebot, which refers to the Recyclebot's ability to provide the filament needed to largely replicate the parts for the Recyclebot on any type of RepRap 3-D printer. The device costs less than $700 in mate rials and can be fabricated in about 24 h. Filament is produced at 0.4 kg/h using 0.24 kWh/kg with a diameter ±4.6%. Thus, filament can be manufactured from commercial pellets for <22% of commercial filament costs. In addition, it can fabricate recycled waste plastic into filament for 2.5 cents/kg, which is <1000X commercial filament costs. The system can fabricate filament from polymers with extrusion temperatures <250 °C and is thus capable of manufacturing custom filament over a wide range of thermopolymers and composites for material science studies of new materials and recyclability studies, as well as research on novel applications of fused filament based 3-D printing. | In order to assist researchers explore the full potential of distributed recycling of post-consumer polymer waste, this article describes a recyclebot, which is a waste plastic extruder capable of making commercial quality 3-D printing filament. The device design takes advantage of both the open source hardware methodology and the paradigm developed by the open source self-replicating rapid prototyper (RepRap) 3-D printer community. Specifically, this paper describes the design, fabrication and operation of a RepRapable Recyclebot, which refers to the Recyclebot's ability to provide the filament needed to largely replicate the parts for the Recyclebot on any type of RepRap 3-D printer. The device costs less than $700 in mate rials and can be fabricated in about 24 h. Filament is produced at 0.4 kg/h using 0.24 kWh/kg with a diameter ±4.6%. Thus, filament can be manufactured from commercial pellets for <22% of commercial filament costs. In addition, it can fabricate recycled waste plastic into filament for 2.5 cents/kg, which is <1000X commercial filament costs. The system can fabricate filament from polymers with extrusion temperatures <250 °C and is thus capable of manufacturing custom filament over a wide range of thermopolymers and composites for material science studies of new materials and recyclability studies, as well as research on novel applications of fused filament based 3-D printing. | ||
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!<big>RepRapable Recyclebot</big> | |||
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* [[Recyclebot]] | |||
** [[Improving recyclebot concepts]] | |||
* [[Tightening the loop on the circular economy: Coupled distributed recycling and manufacturing with recyclebot and RepRap 3-D printing]] | |||
* [[Energy Payback Time of a Solar Photovoltaic Powered Waste Plastic Recyclebot System]] | |||
* [[Wood Furniture Waste-Based Recycled 3-D Printing Filament]] | |||
* [[Life cycle analysis of distributed recycling of post-consumer high density polyethylene for 3-D printing filament]] | |||
* [[Evaluation of Potential Fair Trade Standards for an Ethical 3-D Printing Filament]] | |||
* [[Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions]] | |||
* [[Mechanical testing of polymer components made with the RepRap 3-D printer]] | |||
* [[Development and feasibility of applications for the RepRap 3-D printer]] | |||
* [[Life cycle analysis of distributed polymer recycling]] | |||
* [[Solar powered distributed customized manufacturing]] | |||
* [[Distributed recycling of post-consumer plastic waste in rural areas]] | |||
* [[Ethical Filament Foundation]] | |||
* [http://www.economist.com/news/science-and-technology/21565577-new-manufacturing-technique-could-help-poor-countries-well-rich-ones Economist article on U. of Washington's HDPE boat], [http://open3dp.me.washington.edu/2012/07/woof-rocks-the-boat/ Oprn3dp.me] | |||
* [[Fused Particle Fabrication 3-D Printing: Recycled Materials’ Optimization and Mechanical Properties]] | |||
* [[3-D Printable Polymer Pelletizer Chopper for Fused Granular Fabrication-Based Additive Manufacturing]] | |||
* [[Green Fab Lab Applications of Large-Area Waste Polymer-based Additive Manufacturing]] | |||
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* Cruz, F., Lanza, S., Boudaoud, H., Hoppe, S., & Camargo, M. Polymer Recycling and Additive Manufacturing in an Open Source context: Optimization of processes and methods. http://sffsymposium.engr.utexas.edu/sites/default/files/2015/2015-127-Cruz.pdf | |||
* https://ultimaker.com/en/resources/52444-ocean-plastic-community-project | |||
== Literature Reviews == | == Literature Reviews == | ||