Bottom surface lines

Hi, I’m new to 3D printing and I’m sure this “problem” is easy to fix, but after a day of searching I still can’t find the solution…

I want the bottom surface lines to be thicker. For the top lines there’s an easy option on the left – when I type in 0.84 instead of 0.42 mm for the surface, it works fine. But I can’t find an option for the bottom surface. Does anyone know how to do this?

I do not think you can change line widths for only bottom surfaces.

The wider first layer option (with greater layer height) is only present to improve adhesion on uneven surfaces.

You could flip the assembly (eliminating supports) and increase top surface line width.

What are you trying to achieve? Maybe there is another option.

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Thats what i assumed is the best solution.

What are you trying to achieve? Maybe there is another option.

I was just hoping to get another type of surface line width for the top and another type for the bottom.

Why do you need that? Are you trying to achieve a certain surface finish or texture? What is the design requirement driving your question?