CAD/Auto Feature Vector Issue

[TAC45]

I am having an issue with incorrect auto feature vectors on a particular CAD model as seen in attached image. I even tried creating individual points on the surface and constructing a plane to project to but the vector still not normal to the surface on the constructed feature. I have never experienced this before. Any ideas as to what may be going on here? Thanks.
Auto Circle.PNG

[Kp61dude!]

Open your Auto Feature window and create a cylinder then switch it to Circle. Your issue is that the 'normal' plane is not perpendicular to the hole. If you must use sample hits you'll probably have to use a single point with this one.

[TAC45]

Thank you for the input. I tried creating a cylinder and then switching to circle but feature relationship to CAD still appears same as before. I understand what you are saying about the normal plane but am confused as to why creating the individual points all around the circle and projecting to constructed plane doesn't work either. I have done this many times before in the past without issue.

[TAC45]

OK I think I have it. I increased the number of points on the surface around the hole for my constructed plane. I then created a circle and projected to the plane and this time the vector appears correct even though the constructed circle doesn't appear concentric to CAD but has the correct hole nominal. I recorded the IJK values for the constructed circle. I then deleted all of this information and created an auto circle plugging in the IJK values from the constructed circle.
Auto Circle_Fixed.PNG

[Mike Ruff]

If your surface plane near the hole does not generate the same vector as the hole, then they are not perpendicular on the model and, most likely, should not be treated like they are

[Kp61dude!]

If your surface plane near the hole does not generate the same vector as the hole, then they are not perpendicular on the model and, most likely, should not be treated like they are

That's the bigger question. I assumed you had some sort of weird/wrong print callout some drafter pulled out of thin air.... in their normal fashion. Though I should've questioned that, also. Why are you trying to go for such geometry?