• grue@lemmy.world
      link
      fedilink
      arrow-up
      28
      ·
      2 days ago

      Considering that it was about topology, that might very well be the smartest couple’s dispute I’ve ever heard of.

        • BCsven@lemmy.ca
          link
          fedilink
          arrow-up
          3
          ·
          2 days ago

          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

            • BCsven@lemmy.ca
              link
              fedilink
              arrow-up
              2
              ·
              1 day ago

              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

              • WildPalmTree@lemmy.world
                link
                fedilink
                arrow-up
                1
                ·
                15 hours ago

                I don’t have a dog in the race. I just think you are two big dorks and I love this discussion. I want at least a 20 minute YouTube video of the correct answer and why the other is wrong!

                • BCsven@lemmy.ca
                  link
                  fedilink
                  arrow-up
                  3
                  ·
                  edit-2
                  9 hours ago

                  Well you are in luck. No video but images of analysis. Hedgehog plot of normal vectors, they converge to flat at stem base. Hard to see since the stem/dimple share space.

                  Confirmation of immediate angle at stem base

                  Slope plot. Green being 0 degrees from up vector.

                  Dimple hole showing its not a cylindrical stem

                  Stem slope, green being immediate 0 vector

                • BCsven@lemmy.ca
                  link
                  fedilink
                  arrow-up
                  1
                  ·
                  12 hours ago

                  I’m on a trip so won’t have access to my CAD analysis tools, so no video I’m afraid.