Consider post processing steps if you really need smooth parts. Sandable fillers, special paints, epoxy coatings, or just a bunch of sanding. I’ve had good luck with XTC-3D. It’s an epoxy you paint on that’s specifically designed for smoothing prints.
You could also consider a resin printer if you need smooth. They are their own can of worms, but the resolution and smoothness is good.
Ok but why isn’t it smooth 😅? My layers look like that but I kind of just accepted it as I have a cheap printer (Anycubic Kobra Neo)
Edit: do you just need to set a lower layer height?
Lower layer height will make the steps smaller. In orca slicer you can use adaptive layer height to decrease layer height just on the top of the dome.
Choosing different printing orientation can be a solution.
Consider post processing steps if you really need smooth parts. Sandable fillers, special paints, epoxy coatings, or just a bunch of sanding. I’ve had good luck with XTC-3D. It’s an epoxy you paint on that’s specifically designed for smoothing prints.
You could also consider a resin printer if you need smooth. They are their own can of worms, but the resolution and smoothness is good.
I usually just accept the roughness.