How to define DATUM H?

Hi All,

Maybe it's very simple, but I don't know how to look at it to determine DATUM H, which is the angle.
I need your advice on how to define DATUM H ... picture below.
I will be grateful for any help.

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0 louisd 6 months ago

Measure each edge of that 39.48° angle as a line, with the line's vectors pointing away from the center of the circle.

Construct intersect/pierce points for the lines, as they intersect the corner of the edge, at the outer diameter.

Then construct a single midpoint of those two line-to-outer diameter midpoints.

Construct a line from center of circle, to the midpoint.

Rotate about that mid-line.
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0 louisd 6 months ago

Measure each edge of that 39.48° angle as a line, with the line's vectors pointing away from the center of the circle.

Construct intersect/pierce points for the lines, as they intersect the corner of the edge, at the outer diameter.

Then construct a single midpoint of those two line-to-outer diameter midpoints.

Construct a line from center of circle, to the midpoint.

Rotate about that mid-line.
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