Open-Source Grinding Machine for Compression Screw Manufacturing

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Source

Abstract

OSGrinder.png

Some of the most promising distributed recycling and additive manufacturing (DRAM) technical systems use fused particle fabrication (FPF) or fused granular fabrication (FGF), where compression screws force post-consumer waste plastic through a heated nozzle for direct 3D printing. To assist the technical evolution of these systems, this study provided the details of an invention for a low-cost, easily replicable open-source grinding machine for compression screw manufacturing. The system itself can be largely fabricated using FPF/FGF following the self-replicating rapid prototyper (RepRap) methodology. This grinding machine can be made from a cordless cut-off grinder and < $155 in parts. The new invention is demonstrated to be able to cut custom screws with variable (i) channel depths, (ii) screw diameters, (iii) screw lengths, (iv) pitches, (v) abrasive disk thicknesses, (vi) handedness of the screws, (vii) and materials (three types of steel tested: 1045 steel, 1144 steel, and 416 stainless steel). The results show that the device is more than capable of replicating commercial screws as well as providing makers with a much greater flexibility to make custom screws. This invention enables the DRAM toolchain to become even more self-sufficient, which assists the goals of the circular economy.

Keywords[edit | edit source]

Using the OS Grinding Machine
grinding machine; open hardware; open-source hardware; open-source appropriate technology; compression screw; grinding; cylindrical grinding machine; material extrusion; angle grinder; [Circular economy]]; Distributed recycling; Polymer recycling; Sustainable development; distributed manufacturing; life cycle analysis; recycling; recyclebot; 3-D printing; Open source hardware; Open hardware;  RepRap; Recycling; Polymers; Plastic; Recyclebot; Waste plastic; Composites; Polymer composites; Extruder; Upcycle;  Materials science;additive manufacturing; distributed manufacturing; open-source; waste plastic; extruder; upcycle

Project Details of assembly[edit | edit source]

See also[edit source]

RepRapable Recyclebot and the Wild West of Recycling

Recycling Technology[edit source]

Distributed Recycling LCA[edit source]

Literature Reviews[edit source]

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Externals[edit source]


  • 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. [2]
  • Investigating Material Degradation through the Recycling of PLA in Additively Manufactured Parts [3]
  • Mohammed, M.I., Das, A., Gomez-Kervin, E., Wilson, D. and Gibson, I., EcoPrinting: Investigating the use of 100% recycled Acrylonitrile Butadiene Styrene (ABS) for Additive Manufacturing. [4]
  • Kariz, M., Sernek, M., Obućina, M. and Kuzman, M.K., 2017. Effect of wood content in FDM filament on properties of 3D printed parts. Materials Today Communications. [5]
  • Kaynak, B., Spoerk, M., Shirole, A., Ziegler, W. and Sapkota, J., 2018. Polypropylene/Cellulose Composites for Material Extrusion Additive Manufacturing. Macromolecular Materials and Engineering, p.1800037. [6]
  • O. Martikka et al., "Mechanical Properties of 3D-Printed Wood-Plastic Composites", Key Engineering Materials, Vol. 777, pp. 499-507, 2018 [7]
  • Yang, T.C., 2018. Effect of Extrusion Temperature on the Physico-Mechanical Properties of Unidirectional Wood Fiber-Reinforced Polylactic Acid Composite (WFRPC) Components Using Fused Deposition Modeling. Polymers, 10(9), p.976. [8]

News[edit | edit source]

  1. Michigan Tech researchers invent open-source grinding machine for compression screw 3D printing 3D Printing Industry 72k SVMakers
  2. Open-Source Grinder Makes Compression Screws For Plastic Extruders Easy Hackaday 9.8k, Tech Street Now
  3. Open Source Grinding Machine Cuts Cost of Pellet 3D Printing 3D Print 75.7k, 3D Printing Today
  4. Latest News of 3D Printing Morgen Filament
  5. Grinding Machine from Professor Pearce Medium 79