• BCsven@lemmy.ca
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        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
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            2 days 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
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              19 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
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                13 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
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                16 hours ago

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