The original post: /r/3dprinting by /u/Halfmans on 2024-12-28 16:35:27.

Hi everyone, I’m currently having a hard time trying to fix an issue…

When I’m printing big flat surfaces like the one on the pictures, my first layer doesn’t look good as you will see…

https://preview.redd.it/50e6youj7m9e1.jpg?width=742&format=pjpg&auto=webp&s=d5154456e15cb4ac4da19dcdefdafd464ec1c8b7

My printer is an Elegoo Neptune 4 Plus (with latest firmware) and I’m using Orca Slicer 2.2.0, I’m using Elegoo black PLA+ for this example.

Temperatures are 210°C for the nozzle, 65°C for the bed.

What I tried so far is to do the Z-level procedure many times with both thickness gauge (0.1mm) and paper technique with hot bed. I didn’t notice any improvements (I started from what I think is the good position then tried +/- 0.02mm with a step of 0.01mm).

I also did the screw tilt adjust procedure a couple of times then printer’s auto bed leveling, my bed looks pretty flat in my opinion:

https://preview.redd.it/6ia9i7tp8m9e1.png?width=1574&format=png&auto=webp&s=f21f4d79c4e734f5661629724381093df5cc358d

I would say it’s more an “aesthetic” issue as my prints are more than fine in the end + it doesn’t really appear on small prints but I’m a bit fussy and trying to fix this drives me a bit mad.

What parameters can I tune to improve that?

Thank you for your help!