How to make a cylinder smooth without smooth shading? I want to 3d print a .stl file of a cube with a cylinder coming from it, but blender's default cylinder isn't smooth, and smooth shading is just an optical illusion. I don't know if I should just use the sub surface modifier a lot, or something else?
You cannot technically do this in blender. However, you can increase the number of faces to the point where the printer’s resolution dot is bigger than the width of the faces. I think this is impractical however, and recommend you print it out a little rough, then do some sanding work.