Please help dial in my printer

[miatawnt2b]

Hello everyone. I am new to 3d printing, and I am trying to get my Elegoo Neptune 4 PLUS dialed in. I've had some struggles out of the box with bed adhesion with both PLA and PETG, and crazy stringiness, layer adhesion and boogers with PETG which is probably expected for a noob. Anyhow, I installed OpenNept4une last week and have been maticulously going through all of the setup and adjustments in the wiki over there. I printed a scraper I found over on Printables to help get things off the bed, and I'd like your comments about the print quality and what I should look at tweaking to make it better.


Using Orca slicer, printed in dried PETG (10% humidity), 4mm nozzle, 235c, layer height .2mm, flow ratio 1.08, PA .124, retraction length 5mm, z-hop .5mm. 3 walls, 3 top layers, 4 bottom, 10% gyroid infill. 20mm first layer speed, 60mm outer wall speed, 200mm inner wall speed.


Stringing on this was much less than I've had in the past, but it might just be the model. I think the top of the print looks like crap. What do you all think? What should I look at tweaking to get it even better?
Thanks in advance for the help!

Bottom.jpgSide.jpgTop1.jpgTop2.jpgTop3.jpg

[airscapes]

slow down.. try 40mmS.. infill 35%, layer height .3

[miatawnt2b]

Thank you for your suggestions. I tried these settings and the print is not much different. Any other thoughts? Another question. I have the top surface pattern set to rectilinear, but it doesn't appear that there is any sort of rectilinear pattern on the top surface. I probably am not understanding the setting.
Thanks again!
SGCAM_20250212_082911722.jpgSGCAM_20250212_082917804.jpgScreenshot 2025-02-12 at 9.37.44?AM.jpg

[frierson22]

Look into linear advance. https://marlinfw.org/tools/lin_advance/k-factor.html
Getting this dialed in helped me a lot.
Horizontal expansion is another setting that can help with over extrusion.

[JohnnyJ]

What does "dial in a printer" mean?

[airscapes]

What does "dial in a printer" mean?

It means, learn how the slicer program works and the quirks related to your printer so you can get a good result.

[JohnnyJ]

It means, learn how the slicer program works and the quirks related to your printer so you can get a good result.

Ok, thanks. Maybe I have the wrong number ...