At the deepest part where it surrounds stem tightly there will be an instant tangent which then immediately becomes non tangent. A G0 and G1 condition and not G2
Doesn’t matter, the point where stem and dimple are deepest and encapsulated would have same vector direction initially. Topology doesn’t need to be cylindrical to have vectors
Incidental Tangent to the surface where the stem starts.
approximately
At the deepest part where it surrounds stem tightly there will be an instant tangent which then immediately becomes non tangent. A G0 and G1 condition and not G2
The surface does not become a perfect cylindrical section in nature, nor is the stem itself cylindrical.
Doesn’t matter, the point where stem and dimple are deepest and encapsulated would have same vector direction initially. Topology doesn’t need to be cylindrical to have vectors