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The 3D Printing Filament Spool Standard: Light-weight, stackable, standard spool design could take hold soon - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing
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Reprap development and further adventures in DIY 3D printing: Universal 3D printing filament spool standard 2014
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PLA 3D Printer Filament Bundle, SUNLU PLA Filament 1.75mm, Dimensional Accuracy +/- 0.02 mm, 1 kg Spool, 1.75mm, PLA 10KG,Black - Walmart.com
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Reprap development and further adventures in DIY 3D printing: Universal 3D printing filament spool standard 2014
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