If the R11.5 and rad marked just R are perfect blends with no small flat between them you could try the this.
1; Measure both radius.
2: Construct a Line between the 2 radius.
3: Construct a point from the line to one of the radius to create the Tangent point you may have to reverse the line to get correct point.
4: Set a new alignment rotated to the constructed line and origin set X,Y on the constructed point.
5: Construct a generic line X,Y 0,0, set the line vector to produce a line perpendicular to the first constructed line.
6: recall the original alignment.
7 Construct a generic line with Y values CIR4.Y+CIR4.R for both NOM and MEAS. Set the line vector as 1,0,0
8 Construct a point by intersection of the 2 Generic lines and dimension.
If there is a small flat no perfect blend just measure that and intersect with the second generic line in above example.
If the R11.5 and rad marked just R are perfect blends with no small flat between them you could try the this.
1; Measure both radius.
2: Construct a Line between the 2 radius.
3: Construct a point from the line to one of the radius to create the Tangent point you may have to reverse the line to get correct point.
4: Set a new alignment rotated to the constructed line and origin set X,Y on the constructed point.
5: Construct a generic line X,Y 0,0, set the line vector to produce a line perpendicular to the first constructed line.
6: recall the original alignment.
7 Construct a generic line with Y values CIR4.Y+CIR4.R for both NOM and MEAS. Set the line vector as 1,0,0
8 Construct a point by intersection of the 2 Generic lines and dimension.
If there is a small flat no perfect blend just measure that and intersect with the second generic line in above example.
