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Auto Rewind Center Hub Roller for Ultimate Cereal Container — image 1
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Auto Rewind Center Hub Roller for Ultimate Cereal Container

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This is a remix of my Center Hub Roller for Ultimate Cereal Container that adds an auto rewind spring.

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Category
Accessories
License
Creative Commons — Attribution — Noncommercial — Share Alike

Since I use this with a diy filament dryer, none of the printable auto rewinds work because they lose their elasticity.  This is designed to use a spring out of cheap retractable tape measures (these or these).  The springs aren't super strong a full 1kg roll won't rewind great but once you use a bit it gets going. It fits most spools I have. The cardboard ones a a bit of a pain but still works. I printed the first one in ABS, but it melted drying nylon. I made the one shown in Sunlu Easy PA and has great flex so I recommend that over abs. ABS should be fine for use if drying abs, asa, petg or pla.

It still uses 608 bearings.  I just printed these. This fits directly in the cereal base from GunplaMark's design and the larger base cereal box (Shigeer on Amazon or the ones sold on AliExpress) I created a base to fit those here.

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