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Sunlu filament holder self centering roller — image 1
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Sunlu filament holder self centering roller

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Self centering roller for Sunlu's filament holder

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Model information

Category
Accessories
License
Creative Commons — Public Domain

I tried to use this filament holder but ran into issues with stability and too much flex.  https://www.printables.com/model/497432-standard-xl-and-xxl-self-centering-filament-spool

So, I bought the two pack of Sunlu metal filament holders.  These include bearings and also have holes for attaching to printer frames.    

Once these are printed, you can put them over the concave rollers that are included in the Sunlu holder.  On my Elegoo Neptune 4 Plus printer, I used the included 4mm t-track nuts that are for attaching the Elegoo included spool holder.  Using 4mmx8 screws, I was able to lock the Sunlu holder to the frame, which also locks these new rollers in place.  

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