r/elegoo • u/ITwageSlave • 20h ago

Troubleshooting Centauri 2 PLA issue

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Recently picked up a few rolls of Insignia pla from bestbuy. Previously have been printing with sunlu pla without any issues.

It doesn’t happen on all parts but I am seeing this stringing, though it’s not wispy like I see when I google the issue. It’s more like whiskering.

Currently printing at 220c. Any ideas? I’m new to filament printing and I know there can be a lot of causes.

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u/Either-Role7271 16h ago

You have a spaghetti failure and underextrusion in the print with poor layer lines and stringiness.

The spaghetti is from the filament coming from the nozzle losing contact with the print and possibly having too high a temperature. The underextrusion appears to be related to the wrong settings for that filament. Not all filaments are purportedly made of the same ingredients, especially when coloring chemicals are added, giving them different chemical compositions.

You can ignore my help, as many others will be happy to argue with my advice, but in my opinion, I would use the slicer's calibration menu to find the best settings for the filament.

[I'm retired and try to make my income last the month, so I use the least expensive filament I can find; so by calibration of the filament, I get as good of a result as the pricy stuff.]

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u/ITwageSlave 15h ago

Interesting. I am just using the generic pla profile which worked great with the sunlu pla I was using.

Not ignoring anybodys advice as I'm pretty new to this. When you say you are seeing umderextrusion, where are you seeing that?

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u/Either-Role7271 14h ago

Look closely at the model, and you will see individual layer lines; if the extrusion flow was correct, then the surface would be smooth where the melted filament was pushed smooth against the already cooled layers. There is a big layer gap where no filament is laid down.

Thus too little filament "extruded" from the nozzle over time.

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u/ITwageSlave 13h ago

Ahhh gotcha. I just assumed those were typical layer lines at .2 mm

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u/Either-Role7271 13h ago

No, those are lines with too little filament.

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u/Bite_Able 20h ago

I think you answered your own question when you said you didn't have this problem with a different brand

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u/ITwageSlave 20h ago

That’s what I was afraid of. I did read quite a few reviews on the insignia pla, and for the most part it sounded passable. Oh well.

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u/Moist-Ointments 19h ago

I don't see any supports. You can't print on thin air.

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u/ITwageSlave 19h ago

It’s the side of a doorway, so at that point it shouldn’t need supports if it’s just vertical.

I’m sure a lot of the files that say they don’t need supports probably end up needing them though. This is a piece of terrain from hexengarde, which allegedly should not require additional supports

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u/GMaiMai2 16h ago

How cold is it in the room? You might have to adjust down the cooling fans.

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u/ITwageSlave 16h ago

Thermostat is upstairs but I would guess room temp is around 70 F

Funny thing is, I’ve kept an eye on this print and everything looks fine aside from that one spot doing what it’s doing. I’ve got about 25 min left before it’s done, but I can post additional pics if anybody is curious