Why does a 3D model look different after exporting it for 3D printing?

[indiancad]

Have you ever created a detailed 3D solid that looks smooth in CAD, but appears faceted or loses some detail after exporting it for 3D printing?

 

One important thing to check is the mesh quality used during export. A surface that looks smooth on screen may be approximated by a limited number of triangular faces in the exported mesh.

 

I always recommend checking the exported STL in a mesh viewer before sending it for printing. Pay particular attention to curved surfaces, small holes, and fine details.

 

What settings or tools do you use to maintain curved surface quality when exporting CAD models for 3D printing?