How to get smooth curves for 3D printing.
SolutionWhen you are exporting an stl file, open the options dialogue box. Change the setting from coarse to fine. If you are using .3mf option look at top left corner you will see the File icon. Click on it and you will see some options... and 3D print option. Click on 3D print and then you will see 3d print settings (select fine for a smooth surface).