Does this make Sense?

[shadow.realm]

This is a test print that I am using to try to figure out how to dimension tangent points on an angle.  Does this make sense looking at it and what is being measured?

[TrippyLighting]

Yes, I know what you are trying to communicate, however, whether it complies with any drawing standards I don't know.
@TheCADWhisperer can tell you more. 

[TheCADWhisperer]

Makes sense to me - but I think I would also add the phantom tangent line (red line in my image).

I didn't try that in Fusion, so I'm not sure it is possible.

Back in the day - we used to label these as TP1, TP2 (Test Point 1, Test Point 2....) but nowadays we are supposed to use international symbols rather than words/abbreviations that might not be understood in other languages.   I would have to do research on what symbol to use (I don't teach GD&T) anymore.  This general style of dimensioning is commonly used in castings where it is sometimes difficult to take measurements - if you do research, I would start there.

If you will be making these parts in-house, just make sure that your inspectors understand your nomenclature.  If this will go to outside vendor - might be worth the time to find a standard nomenclature.  But for in-house use that looks easy to understand and makes sense to me.

Final bit: I sure hope that tight tolerance is truly needed - it will be difficult to manufacture (especially on an angle), just as it is difficult to measure and will impact the cost of manufacture.

[HughesTooling]

---

@TheCADWhisperer wrote:

Makes sense to me - but I think I would also add the phantom tangent line (red line in my image).

I didn't try that in Fusion, so I'm not sure it is possible.

---

In Fusion I think you'd need to make a sketch in the design workspace then enable its visibility in the 2d drawing. 

---

Final bit: I sure hope that tight tolerance is truly needed - it will be difficult to manufacture (especially on an angle), just as it is difficult to measure and will impact the cost of manufacture.

---

Another problem measuring is the radius around the base of the part will need to be correct\perfect as well or is there a small flat?

Mark

[chrisplyler]

It makes sense, but isn't enough information.

What is the distance of the gauge pins from the edge? Are we to assume, as @TheCADWhisperer  has suggested, that they are to be tangent to the 'flat?'

Where along the curved edges are we supposed to measure the 11-deg and 4-deg angles? What is the radii of them? Is the outer edge supposed to finish perpendicular to the flat? Is the smaller one supposed to finish tangent to the flat?