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Expandable spool holder 85 - 143 mm - Prusa CORE One
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Expandable spool holder for the Prusa CORE One for wide / large spools up to 143 mm. Easy to print, no tools required.
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Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial
Goodbye to the limitations of the original 70 mm spool holder for the Prusa CORE One. I've designed this spool holder to accommodate spools from 95 mm to 143 mm in width, giving you the flexibility to use a wider range of filaments / spools.
Key features:
- Expandable design: Easily adjust from 95 mm to 143 mm
- Integrated expansion stopper of the sliding part (to prevent that it slips out)
- Robust construction for stability
- Quick and simple assembly
- Designed for easy printing without support
- Recommended filament and print settings: PETG (or PLA) with 25% infill; draft setting with 0.28 mm layer height works already very well)
Installation:
- Insert the slider into the base and push it a little bit (to loose some filament strings you may need to turn it a few times clock- and counterclockwise)
- Lock the slider into the base with a 90-degree turn. Now you can pull it outward for expansion without risk that it slips out
- Replace the original holder using the same screws
Hope you like . I'd be happy to get your thoughts and improvement ideas.
— Version history ---
v1.1 (24. June 2025) - improved more robust version when expanded incl. tighter spacing between parts
v1.0 (March 2025)- initial design