hi,

"LanuHum" <Lan### [at] yandexru> wrote:
> ...
> > S Benge posted a macro ...
> Thank you. I understand macros very poorly, but I can create a spiral from a
> sphere_sweep. Then subtract the spiral from the cylinder.

(I don't even have the maths to do those "from scratch" :-))


> But, I want to achieve a realistic profile.

multiple passes with an increasing (sphere) diameter, from the lowest, smallest,
upwards, is the "crude", naive way I'd try for an approximation.  perhaps the
spiral itself can be created/shaped with a useful-to-you profile ?


regards, jr.

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