Spool Balls - Weighted balls to prevent spool jump
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Description
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Weighted Spool Balls – Stops Spool Jumping in your AMS
When spools get light near the end of a roll, they can jump, slip, or misfeed inside the AMS—causing filament breaks, tangles, and failed prints. These Weighted Spool Balls adds controlled downward pressure to the spool core, helping maintain consistent drag all the way to the last meter. Each ball is less than 10 grams of filament, printed in ABS for strength and heat resistance but PETG should work fine as well.
✔ Prevents spool jumping / runaway crossover filament
✔ Keeps tension on low-weight or partial spools
✔ Reduces tangles, misfeeds, and AMS load errors
✔ Drop-in design — no tools, no modifications
Just print the two pieces, add your favorite weight (I used 9 oz of lead) then simply screw the two halves together. Now place the weighted ball into the spool hub, and print with confidence.
Don't forget to get your Spool Balls Holder here!
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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