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Have you tried a temperature tower? It's possible you're printing too hot and getting stringing as a result. If that doesn't help, I found this video a while ago for dealing with some cases of stringing that might help.
I'm still pretty new to all this, but I know there are tons of variables that can affect the print quality, and stringing is a symptom of lots of different things.
I also found that changing the nozzle on my Neptune 2 pretty much solved my stringing issue, although since this printer is only probably a month old that shouldn't be an issue yet, so just throwing it out there. Although there are a lot of variables that affect it too, it probably took me several months off and on to tune my printer (on klipper firmware) with help.
I'm pretty sure a partially clogged nozzle can cause stringing issues as well. Brass nozzles are cheap, so it's a pretty easy thing to check.
yea, not sure if it was clogged or what, but filament seemed to string from the side of the nozzle, almost like there was a tiny pinhole or something. I also ended up replacing the connector that goes between the hotend and the Bowden tube and also removed a small section of the tube that was in the hot end. Haven't had issues since (I think we tried tuning it the best we could, and the nozzle was just the final step that got rid of the stringing fully)
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yeah temperature then flow calibration should solve over extrusion problems that will cause your parts to stick to each other or otherwise bind.
Step 1: make sure you have dry filament.
Step 2: follow this guide: https://ellis3dp.com/Print-Tuning-Guide/
8 mm retraction sounds like waaaay too much, a direct drive printer should print fine with under 1 mm retraction.
The filament's a week out of the vacuum sealed bag - other than running it through the dryer to be safe, how can I tell it needs to be dried?
Will run through the guide, thanks.
Wet filament can give popping sounds while extruding, and indirectly cause stringing because of the moisture evaporating in the extruder. This causes filament to ooze out because of the high pressure. But since its a week old it's most likely fine.
But since its a week old it's most likely fine.
You are right, but sometimes you get vacuumed wet filament
Not necessarily, I've got a wet filament a few times from a freshly opened box.
Yeah 8mm is crazzy high and probably dangerous. OP should tune retraction again. Direct drive should be <2 mm and bowden <6 mm.
Maybe not solution to main problem, but deffo something to fix.