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Unspooling jam

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I lost a few long prints recently due to the material not coming off the spool neatly. Seems like the free end of the material is under a loop of other material a layer down on the spool After a few hours of printing everything gets tight and the feeder can't pull the material through. Any thoughts on how to address this problem? I tried to re spool a few meters before starting but it doesn't get me through a long print.

 

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I lost a few long prints recently due to the material not coming off the spool neatly. Seems like the free end of the material is under a loop of other material a layer down on the spool After a few hours of printing everything gets tight and the feeder can't pull the material through. Any thoughts on how to address this problem? I tried to re spool a few meters before starting but it doesn't get me through a long print.

 

I had this in one of my not so good brands of PLA. Most frustrating, no matter how much you seem to unwind it it still stays tangled somehow.. :/ I just ended up uncoiling, and loosening it every few hours. (which is not really a solution I know. But I share in your pain.)

 

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I doubt it has much to do with the quality of the filament (I have it on a spool from Ultimaker that I've been too lazy to fix properly) but more to do with just accidentally making it happen when handling the spool.

 

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When you change a spool just NEVER let go of the end of the fillament untill you attached it to the spool.

I use these things to clamb the fillament to the side of the spool.

paper clamp

I would never use the clambs where you need to attach the fillament end to some other part of filament on the spool.... just to much risk you'll mess up then....

 

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Good call with the clips. I just started using the clip type where the end attaches to another loop of material in the spool. I can see how it would be easy to get a knot. I'll use the binder clips!

Thanks everyone for the comments and ideas. :cool:

 

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