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Sliding ring for Elegoo cardboard spool on auto rewinder — image 1
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Sliding ring for Elegoo cardboard spool on auto rewinder

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Sliding ring to overcome resistance of cardboard spools, for Elegoo spools.

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The auto-rewinder is a great addon for the Drybox filament storage. But with cardboard spools, I frequently had feeding issues because of the higher slide friction, when the filament was less than 1/3. Lesser leverage meant less force to overcome the resistance.

With these press fit rings, the spools glide more easily, while the rewinding mechanism still does its job.

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