Minimalistic Spool for 1KG refill coils with 6 tunnels for the end of the filament.
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![[~50g filament usage] ESUN, ROSA3D, Prusament, Kraus spool (1Kg refill coil) 3D model preview](https://media.printables.com/media/prints/135190/images/1291358_221e72b2-298c-4745-babe-2a166e0894d2/img_5168.jpg)