Very likely this is something quite small and you’re running into a thing in which SketchUp won’t create very short edge segments and thus very small faces. Try undoing and scale the model up by a factor of 100. Better, use the Dave Method.
Very likely this is something quite small and you’re running into a thing in which SketchUp won’t create very short edge segments and thus very small faces. Try undoing and scale the model up by a factor of 100. Better, use the Dave Method.