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Nodak7
(@nodak7)
Eminent Member
Sunlu Filament Issues

Just wondering if I am the only one having problems with Sunlu Filament? I know that you get what you pay for.... Anyway I purchased a couple of spools and it seemed to work well with no issues. I thought a good purchase! So I purchased a few more thinking I could save some money. I do not use very much and a spool would last me quite awhile which sems to be a problem. The filament begins to disintegrate. Not flexible and breaks when threading thru the tubing and the MMU. I am wondering if it was a humidity problem. Anyway needless to say it's frustrating. I will no longer purchase SUNLU Filament and unless you use lots of filament I would not recommend it. Has cause me lots of issues! Has it only been happening to me?

Posted : 03/12/2025 7:44 pm
Nodak7
(@nodak7)
Eminent Member
Topic starter answered:
RE: Sunlu Filament Issues

I forgot to mention that this filament type was all PLA. 

Posted : 03/12/2025 7:57 pm
jrlebel
(@jrlebel)
Member
RE: Sunlu Filament Issues

I’ve been using Sunlu pla and petg for some time with no real issues. Some adhesion problems with asa and abs but that’s with pretty much all brands. How do you store your filament when not in use?  Perhaps it is related? I store mine in either converted cereal box or in vacuum bags. All with desiccant. 

Posted : 03/12/2025 9:04 pm
Nodak7
(@nodak7)
Eminent Member
Topic starter answered:
RE: Sunlu Filament Issues

I store it is a plastic bag when not in use. However I have a number of rolls that I keep on the Printer to feed the MMU. My humidity is approximately 50-60%. I did consider that as part of my problem but the other filament I use (Overture & Creality) has not had any issues with it. The filament breakage has caused some issues with the MMU selection and I think it contributed to the jamming and ruining my Selector Motor! 

Posted : 05/12/2025 8:35 pm
Mike Daneman
(@mike-daneman)
Estimable Member
RE: Sunlu Filament Issues

I had a major bed adhesion problem with Sunlu filament long ago and have since then sworn off buy any more of it.

Posted : 12/12/2025 12:39 am
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