The STL format is used in 3D printing, so in its settings you should specify the scale at which the model was prepared (and in which the model should be printed). The unit should be set to the centimetres. Leave the other parameters unchanged.
It is worth remembering that the STL format does not support textures, so our model will be displayed in one colour when uploaded to the viewer - this colour can be set in the viewer's control box.
