Versatile Spool Holder for Prusa MK2/3 (and not only)

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I'm using a versatile spool holder designed specifically for Prusa I3 MK2/2S/3 frames, and it works just as well with other frame types. The design is Area51's clever ClipOn system, which I find incredibly useful. There's also a version available for aluminum extrusion frames, although I haven't been able to test it myself due to the lack of aluminum extrusions. If someone manages to create this adaptation, please provide feedback on its performance. This spool holder can accommodate smooth rods or threaded rods with diameters of 8mm, 10mm, and 12mm - one version for each diameter. For smooth rods, you might consider using alexrosa's 3D Print Spool Holder Filament Support or boksbox's hub adapter to enhance functionality. Alternatively, if you prefer a hub with bearings, you can print butchja's Universal Filament Spool Holder and attach it to a threaded rod. This spool holder is versatile enough to hold either single or double filaments (as shown in the photos and renders). I've also included a clip for each diameter that works seamlessly with smooth rods. Acknowledgements A huge thank you to: Area51 for creating the ClipOn Design, alexrosa for developing the 3D Print Spool Holder Filament Support, butchja for designing the Universal Filament Spool Holder, and boksbox for crafting the Hub Adapter.