PETG adhesion issue

[frail warren]

I'm have an issue with PETG adhering to my print bed. I have the Creality brand magnetic plates on an Ender 3 v2 with Marlin. I'm using Creality brand PETG.

I'm having an issue where every time I go to print, one corner of the print will not stick, no matter what I do. I've tried different bed temps, did the tramming and mesh leveling, played with the z offset, and it keeps happening in the same spot

I'm still learning 3d printing and PETG and Marlin are very new to me still.

[gloomy wind]

• Try 20mm\s for first layer speed + 80 degrees bed.
• Wash bed with dish soap and water if you haven't yet already.
• check start gcode to make sure it's using your mesh...

Everything else, good work

[frail warren]

I've just fixed the gcode, and the bed is at 80. I'm doing a flat square test print with a skirt, it still lifted a little in that corner but the rest of it seems to be going smoothly so far

Will update with the first layer test print when it's done

[frail warren]

I underestimated how hard it is to take a pic of black on black

[gloomy wind]

Oh i see.
Z offset is a little on the high side..so if you bring the nozzle closer to the bed, then ith should be fixed.

[noble bear]

Z-offset

Where your printer thinks the nozzle is

The z-offset is the distance from the tip of the nozzle to the trigger point of a bed sensor.

Setting your z-offset correctly ensures a good first layer squish and proper adhesion to the build plate (assuming its clean, see
?bedcleaning for more information). See
?leveling for a good representation of how the first layer should look like.
If in doubt: Refer to you your specific machines documentation.

For the Qidi X series printers: Adjusting the z offset from the Fluidd webinterface breaks it. Always set the z offset from the printers screen.

https://www.wevolver.com/article/z-offset-what-it-is-and-how-to-adjust-it

?z-offset requested by: wolfesbluebox

?squish requested by: wolfesbluebox

[gloomy wind]

(sorry ignore the first one, was trying to call the blue one.) 👌

[frail warren]

That's what I thought, I've been playing with it a bit trying to thet the corner to stick, it worked a but better after adjusting some other stuff, going back to that after dinner

[gloomy wind]

👌
That 45 degree photo is just the best angle btw.

[frail warren]

Yeah I don't have ideal lighting in the room I'm in lol. That was with my phone in one hand and a flashlight in the other

[gloomy wind]

Thats the best way!!

[frail warren]

i tried going lower by 0.01 and it wont stick in a different corner now

[frail warren]

I keep ending up with this. It's sticking where it wasn't before, and now it's not sticking in a corner that was fine before. I didn't change anything