Auto-Cylinder vs Circles Constructing a Cylinder: For Perpendicularity

Which is more accurate, the auto-cylinder to plane OR 3 auto-circles (constructing a best fit, least squared, cylinder) to plane.

Essentially they should have the same result, correct?

When I run it I have a 0.0009 difference between the results.

Which number should I trust?

(I am building off of an IGES file)

Looking at previous posts I made sure that I had it set to Perp to Datum

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JEFMAN over 6 years ago

For the constructed cylinder, I would use BFRE instead of BF.
For the circle, the points are compensated paralle to the workplane, for the auto cylinder perp to the axis.
The difference shouldn't be large, but should exist...
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JEFMAN over 6 years ago

For the constructed cylinder, I would use BFRE instead of BF.
For the circle, the points are compensated paralle to the workplane, for the auto cylinder perp to the axis.
The difference shouldn't be large, but should exist...
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