Keyhole dimension questions

[[Mi...]]

Not actual part, just image off the web. Cannot show print.

1)   Drawing has a true position of the small diameter, I created a cylinder and when I generate the Position it shows a 7mm deviation in the results. The cylinder diameter and X.Y location are less than 50 microns off. 

 

2)  How to get the radius to radius dimension? (blue arrow)

 

Thanks

 

 

 

[[Ma...]]

For TP i would suggest Geometry norm.

For that distance - there can be many ways:

• line from centers of those two circles - then intersection line/circle with mode: curve
• section - then two touch point ( disc ) on selection and projected on section instead of mesh