Print issue all of a sudden

[delicate imp]

I have been using the same print file for weeks and had no issues printing at all, but now it looks like this when I print more than one at the same time. Any suggestions?

1st photo from a batch of 10
2nd photo from a single print. No gaps

Ender 3 neo V2
205/55 degrees celcius

[ruby dome]

Ensure belt tention and everything is snug and has no play

[stuck coyote]

check if the bowden tube got loose

[delicate imp]

Both of those look fine to me. Belts tight and no play in the Bowden tube where it connects on both sides.

[stuck coyote]

do you have oozing if you print more then one?

gcode please

[delicate imp]

Hope this works. Gcode of the file.

[delicate imp]

Some very thin strings only. Nothing like the pictures I see when I googled oozing.

[stuck coyote]

well it is single wall extrusion ... what are your retraction settings?

[delicate imp]

I'll check. (Like I said this print file has been working fine for the previous ~500 prints. Would the cause then be in the settings?)

retraction settings

[delicate imp]

@stuck coyote do you see anything you would recommend adjusting?

[stuck coyote]

yes

id lower the distance down to 4 and lower the speed to 35

[delicate imp]

Thanks, I'll try that out then. Print job uses 101g of filament so will take a bit before I can give an update

[stuck coyote]

you can only print 2 and onyl the part that causes issue and dont risk loosing much time and material

[delicate imp]

I'll look into how to do that. Still pretty new to printing. All I've pretty much done is set up the printer and pressed print 😅

[stuck coyote]

then its a wonder it did not explode :> ender 3 no mater the version rarely work out of the box

[delicate imp]

The only problem I had before luckily was the bed leveling at the first few prints but that's perfect now.

[stuck coyote]

yeah thats a common issues mostly because creality cant do good profiles for abl thats why i have a video for that in my profile

[delicate imp]

A lot better. Still some tiny gaps but not nearly as bad as before. Going to try a print with 10 of them again.

[stuck coyote]

👍

[twilit geyser]

nozzle wear?

[stuck coyote]

Suddenly with pla?

[twilit geyser]

after 500+ prints?

i wouldnt say anything if that nozzle wasnt factory but something like a hardened steel nozzle. but points to #1097497915913674812 message

[stuck coyote]

My prusa brass nozzle still had .4 after 4000 hours ..

Then a 4 hour glow in the dark drilled it up to. .7 😄

[twilit geyser]

yeah but prusa doesnt ship cheapo nozzles.. im just saying 🙂

[stuck coyote]

Worst nozzles sofar were the flsun ones on the super racer ... all 4 were horrible shite with teflon spray or oilers or silver polish

Switched to brozzle nozzles now. Nickelplated copper in the sr and hardend steel in thr prusa no more issues

[twilit geyser]

yeah getting higher quality nozzles makes a huge difference.

its just annoying when 1 nozzle costs like 20€ lol..

or more.

i use cht nozzles.

i love those.

[stuck coyote]

Wanted for the sr but there were none back then

[delicate imp]

I've got 0.6 nozzle from this kit. Unavailable now, but it was about 40 cents per nozzle https://www.amazon.nl/dp/B0924RLMY6?psc=1&ref=ppx_yo2ov_dt_b_product_details
Probably have about 550 hours on it since 24th of March.

All fine now though after following the retraction suggestions posted earlier. Finished a run with 10 of them and not a single gap anymore. Still no idea why it was working fine before, but anyway, it is solved 🙂

[twilit geyser]

thats good to hear.. 🙂

did you replace the nozzle at some point?