"Shell" Lines - How to fix/smooth?

[Wikilla 0]

Anyway to fix these shell lines so they don't show up on the print? Enabling Ironing helps but they still seem to show. Would adding a top surface skin layer help? Or is there something else that can be done? Any help is appreciated!

 

[Dustin 150]

Im guessing you mean the lines on the top surface?
It appears the top surface of the model isnt 100% flat.. which is why it has steps in it..
Would need to fix the model to address that. 

[GregValiant 1,330]

Or it's sitting on the bed at a slight angle which is angling the top surface.  There is an angle involved somewhere so you are getting "steps" because there are 4 layers where you expecting 1.  If you take a close look from the side you will see what is going on.

These are the same model but the one on the left is rotated by 1° so it isn't flush on the bed.  The skirt cutting under the left model is the clue that one edge is up.

Edited November 8, 2023 by GregValiant

[Wikilla 0]

You're both 100% right. That particular piece is at a slight angle. I am rotating it a different way for the reprint, as I'm too lazy to want to go back and fix that, lol.