How to make the top layer smooth？

[swq0603 1]

Sometimes I print modules with large top layer. To make the top layer flat, I set the bottom/top thickness as 0.1mm, the bottom layer is very smooth, but the final model is not very satisfied. Is it possible to make the last layer smooth as the bottom layer after change some parameters of cura?

[ultiarjan 1,080]

In general you need a few more layers get get a good top, when you print 0.1 layers think about 6 layers, so a 0.6 top layer.

for some more complicated and unanswered issues have a look here;

https://ultimaker.com/en/community/view/6375-top-layers-not-touching-um2?page=1&sort=

[swq0603 1]

thank you for the answer. I already set the top layer to 6. I will have a look at your link.

[swq0603 1]

thank you for the answer. I already set the top layer to 6. I will have a look at your link. Maybe there are some more issues during my printing.

[yellowshark 123]

You do not say what infill percentage you are using prior to the top layers - that has an impact. But if you are running less than say 40% I think you will need a lot more than .6mm top layers when using .100 layers