How do I get the bottom layer, that is in contact with the build plate to have a smooth finish, without the inner walls and skin layer lines from showing?
Can you share the STL file for this, as well as the slicer settings that you had selected when you generated this preview?
@sitetrial In some slicers (Prusa, Orca, maybe others?) you can set number of walls for top/bottom surfaces. I don’t think Luban have this setting so you will need to switch to another sicer if you’re using Luban…
Regarding visible lines on bottom layer: If you’re referring to the spacing between the lines, I think it’s just the preview that does not take into account that the initial layer line width factor is set to another value than 100%…
A picture of your bottom layer would help. That’ll let us see if there are height / calibration / leveling issues as well.
The smoothest surface will be with the glass side of the print bed. You’ll still see traces, but the surface will be smooth and shiny otherwise.
The 2.0 does not have a glass print bed.
Consider getting one.
I have one, but I prefer the Fysetc powder-coated PEI print sheet; neither will fix the OP’s issue though, so it’s irrelevant.
Will the OP ever return?