@stop4stuff Sorry, but I have to disagree on the faceting as the major stepping issue here. Stepping occurs on shallow angled surface that nearly align with the horizontal plane.
And is most prevalent on the bottom of the prints, as far as I have seen. But this is usually regardless of the number of faces.
In the case of curved surfaces, when it nears the horizontal plane, it has some influence, but mostly on the distribution of print-lines.
For example:
Whether the model is "perfectly" round or more faceted, the shallow angle parts will show lines, the shallower the angle the clearer the lines, because the horizontal distance will be larger than the vertical distance.
If the model is faceted, the chance of a larger near horizontal area increases and the stepping might be more regular/pronounced.
But in that case we are talking major face size, meaning much larger than 0.2 mm then. Looking at the airplanes that is not the case.
The preview render has a tendency to exagerate this on small models.
On the rounder version, the stepping will be non-linearly distributed, which might obfuscate it more.
@stop4stuff, looking at your example the facets are smaller than the print lines, so I doubt making the faces smaller would improve anything.
Back to the airplanes, yes I think it is the orientation that is the MAJOR factor here, but I am surprised the WSF material was ever suitable for these models.
I would think the detail or ultra detail would be far better suited?
Some more speculation:
Another factor which may explain differences between orders may be which printer was used to print it, I believe there are quite a few different printer models used for WSF.
And it would depend on the settings made by the operator.
I can not tell how large the complete model including all sprues was, but if this was very large, the chances of it being printed flat will increase, and might even end up in the printer for large models (which according to some page I read :blush: ) has a coarser vertical resolution/more stepping.