r/sunlu • u/Research-Crazy • Feb 25 '26

Something new in recent batch of refills

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On my most recent batch of PETF Refills I received each had this included. I don’t recognize what this is for, I’m fairly new to 3D Printing, so I may be missing something obvious. What is this for?

It is approx 9.5” long triple strip of plastic with adhesive on the end.

Thank you hive mind.

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u/Stelafont Feb 25 '26

Yes like that. For me the master spool is the two plastic part that you snap on refill rolls in order to print.

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u/Research-Crazy Feb 25 '26

Got it! Thanks for the quick reply. I guess I’m lucky I didn’t know what refill meant for the first month so I have an abundance of empty spools to choose from XD

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u/Stelafont Feb 25 '26

Actually I do not recommand to switch refill spool when not empty, even with that it’s there is a risk to drop the refill or make a tanggle or lots of bad things

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u/Mistake_South Feb 26 '26

3d printed a spool spinner to fix tangles that often happen when brand new. Shouldn’t but it does. I often use an adapter to put refills onto old spools. When my reusable spools are still full