[Issues with Top Surface using PETG]

Hi All

 

I am new here and relative new to the world of 3D printing.

 

I have an Ender 3 V2.

 

When I am printing pieces which are flat on the top, I am struggling to get a decent surface finish.

 

The bottom of the print is ideal, and I would like to achieve the same quality on the top, but no matter what I try, I cannot get a decent top layer.

 

The part is 2mm thick, PETG.

 

I have attached some photos to show the quality of the top surface and bottom surface.

 

Any suggestions would be greatly appreciated.

 

Thanks