Esun PETG > Messy

Bambu Lab A1 Series Troubleshooting
1

Hi everyone,

i have some issue printing with Esun PETG filament.
Usually, i do some calibration (temp, flow, etc) but here, i only have some kind of Transparent green PETG and can’t “read” the results correclty…

Here i tried to print a death wisthle for Halloween on 0.08 but i had to stop it 3 times already.

The print doen’t look good at all.

I tired with the generic PETG and had top stop it on the second layer.
Here, with these settings, it’s a bit better but not good.
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Thanks for the help.

2

IMO, your stopping it too soon, you really can’t judge the whole print from the 2nd layer.

Also, I printed this model myself at .2 & it came out fine.

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3

There are big misfeed of plastic in the layer

IMG_20241026_151310
IMG_20241026_1513101920×4156 224 KB

That’s why i stopped it. And it’d like the plastic isn’t “fluid”.

Nozzle : 255
Bed : 80

4

I’m going to go out on a limb and say the filament is wet, dry it.

But I’m also concerned that 12 mm^3/s is too much volumetric flow for PETG translucent, but I’m going by Bambu’s settings = 6 mm^3/s.

0.08 is a very fine layer, ok you want a smooth whistle, but you’re going to want to manually calibrate your filament using the calibration tab of bambu studio or orca slicer in that case (after the filament is known dry).

5

I just hate esun petg. Its really annoying to dial it for nice results like sunlu,polylite,devil design, do it with just default petg profile. Fresh open esun petg and the moisture was at 60%. After 8h of drying the filament became much better but still not what i was expecting. I also tried the esun settings from bambu wiki and from esun web site. From my experience i can tell you to use 0.98flow for sure and 250c to 255c for nozzle and slow down the print speeds.

6

PA is 0.062? I think it’s a bit high. I personally do all the PA tests from Orca, not just one. I had times when one test, from all of them, was significantly higher and ended up disregarding them. Also volumetric speed is incredibly high. Flow ration might be right but I had esun filament types with consistent 0.96.

Also print it very slow, no matter the brand.

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7

I have no problem with eSUN PETG although my experience is it needs drying straight out of the bag.

Check like this Help troubleshooting PA6-CF issue - #25 by ZiggyP

After that your temperature is high my eSUN PETG says 250C max and I print at 235 (the higher the temperature the worse mess wet filament makes). PA also looks high I would expect around 0.035. Wet filament will mess up PA calibration.

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8

Thanks everyone for your help ! Like i said, i just can read things cause of it being transparent green…The only setting was the PA. But since some of you are saying it’s not a normal value, maybe it is because of it being wet. Will try to dry it when i get the opportunity. Thanks.

Will make a feedback soon or later.