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Reprap development and further adventures in DIY 3D printing: MasterSpool - A proposed standard for 3D Printing filament supply without a spool
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Amazon.com: FilaCube 1.75mm MasterSpool Refill 3D Printer Filament (Black) : Industrial & Scientific
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Amazon.com: FilaCube 1.75mm MasterSpool Refill 3D Printer Filament (White) : Industrial & Scientific
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