PETG not stick to the edges/corners

Bambu Lab X1 Series
,
1

Hello everyone, I have the problem when printing with PETG that the filament does not stick to the edges/corners and unsightly areas appear, as can be seen in the pictures. Can you help me to find a solution?
I print with ERYONE Transparent PETG at 240 degrees. Print bed 70 degrees and a speed of 60mm/s for the first layer. The cooling is off for the first 2 layers. I dried the filament before. Adjusted the flow and leveled the print bed.

Thank you in advance for the help! :smiley:

IMG_6780
IMG_67801920×1440 277 KB

IMG_6779
IMG_67791920×1363 220 KB

2

For me, it looks like you touched the plate with your finger and left some residue. With such a large print, clean the plate with IPA and dont touch the area where the print is.

1 Like
3

Thanks, I’ll try cleaning it with IPA. Doesn’t this damage the printing plate?

4

IPA is save for the PEI Plate. I clean all my plates with IPA.

5

try Methylated Spirits i think it cleans better than IPA … [Denatured alcohol for you yanks

6

Could you use also a regular glass cleaner instead of IPA?

7

It could also come from the fact that near the tab, the temperature is a bit lower, it can easily be seen with a thermal camera, try to use a higher bed temperature (80/85)

EDIT : also slowing down first layer print infill always make sticking better.

8
  1. Clean the PEI plate with warm water and regular hand soap / kitchen soap,
  2. Apply one layer of glue, ideally BambuLab liquid glue,
  3. Bump nozzle temp to 250-255 °C,
  4. Optionally, slightly increase heatbed temperature. I use 80 °C for first layer.

Never had problems with PETG corners warping up since.

9

Regular hand soap is not formulated to remove grease/oil compounds and some soaps have added moisturizers or other compounds/vitamins.

I don’t doubt it can work, but I feel like there are going to be circumstances where it may not.

10

Bambu support recommends to use soap, but I agree with you when it comes to additives. I have success with Palmolive liquid soap, good enough to remove skin oil form handling the plate without gloves and any residue of the glue stick. Isopropyl seems to have damaged the Bambu PEI coating in the past, not sure if this is more of a rumor or true.