Print is not quite round

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Circular Dimensional Accuracy, Out of Round

Anyone else have issues with circular errors? I’m going over my machine to try and get it to the level of engineering prototypes. Im a Mechanical Engineer by trade and just like precision. Example if i currently print a high res stl with a 20mm Dia cylinder It get a measured output of Max: 20.11mm Min: 19.79mm For a tolerance delta of 0.32mm I fear this is why i am failing some print in place tolerance tests. Any one have ideas. Dimensionally accuracy for X and Y direction prints i ha…