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Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions
| By Michigan Tech's Open Sustainability Technology Lab.
Wanted: Students to make a distributed future with solar-powered open-source 3-D printing.
Pearce Publications: Energy Conservation • Energy Policy • Industrial Symbiosis • Life Cycle Analysis • Materials Science • Open Source • Photovoltaic Systems • Solar Cells • Sustainable Development • Sustainability Education
|This page is part of an international project to use RepRap 3-D printing to make OSAT for sustainable development. Learn more.
Research: Open source 3-D printing of OSAT • RecycleBot • LCA of home recycling • Green Distributed Recycling • Ethical Filament • LCA of distributed manufacturing • RepRap LCA Energy and CO2 • Solar-powered RepRaps • solar powered recyclebot • Feasibility hub • Mechanical testing • RepRap printing protocol: MOST• Lessons learned • MOST RepRap Build • MOST Prusa Build • MOST HS RepRap build • RepRap Print Server
- B.M. Tymrak, M. Kreiger, J. M. Pearce, Mechanical properties of components fabricated with open-source 3-D printers under realistic environmental conditions, Materials & Design, 58, pp. 242-246 (2014). http://dx.doi.org/10.1016/j.matdes.2014.02.038. open access
The recent development of the RepRap, an open-source self-replicating rapid prototyper, has made 3-D polymer-based printers readily available to the public at low costs (<$500). The resultant uptake of 3-D printing technology enables for the first time mass-scale distributed digital manufacturing. RepRap variants currently fabricate objects primarily from acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA), which have melting temperatures low enough to use in melt extrusion outside of a dedicated facility, while high enough for prints to retain their shape at average use temperatures. In order for RepRap printed parts to be useful for engineering applications the mechanical properties of printed parts must be known. This study quantifies the basic tensile strength and elastic modulus of printed components using realistic environmental conditions for standard users of a selection of open-source 3-D printers. The results find average tensile strengths of 28.5 MPa for ABS and 56.6 MPa for PLA with average elastic moduli of 1807 MPa for ABS and 3368 MPa for PLA. It is clear from these results that parts printed from tuned, low-cost, open-source RepRap 3-D printers can be considered as mechanically functional in tensile applications as those from commercial vendors.
- Open-source self-replicating rapid prototyper, RepRaps are 3-D printers.
- Low costs enable mass-scale distributed digital manufacturing in ABS, PLA.
- Average tensile strengths of 28.5 MPa for ABS and 56.6 MPa for PLA.
- Average elastic moduli of 1807 MPA for ABS and 3368 MPa for PLA.
- RepRaps are as mechanically functional as commercial 3-D printers
Using tensile specimen here:http://www.thingiverse.com/thing:28987
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- Recyclebot on RepRap wiki
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- MOST RepRap Build
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- [PDF Impact of Process Parameters on Tensile Strength of FDM Printed Crisscross PLA]
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- Michigan Tech Study Suggests Some RepRap 3D Prints Are As Strong as Commercial 3D Printers- 3D Printing Industry
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- A few ways to strengthen 3D printed parts - St3P3D and 3Ders