I am going to try to bring this topic back in discussion since I am struggling with similar issues.
I have an Ultimaker S5 printing out of one nozzle with PLA, using the 0.8mm nozzle.
One picture shows a CURA screenshot with the support settings: I followed the suggestions of this thread and changed the default Z-distance to the same as the layer height, 0.4mm. I enabled the support roof to see if it would help, even knowing it would be harder to remove.
You guys will see pictures of the final piece once I removed the support.
I am still getting a rough finish, both on curved and on flat surfaces over supports. I understand that some of the issues comes from using a 0.8mm nozzle that doesnt come out as nice as the other ones, but I still believe I should be able to print this piece coming out better. I just wanted to hear opinions from the experts here.
And I could print the piece with the flanged surface facing down, but I am trying to keep the internal surface of the print looks good, the outside is not as important. But this is what I will try next, change the orientation and see how the printer will handle the support over the curved external surface.
Thank you in advance for the feedback!!!