"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Mike Miller" <mil### [at] gmailcom> wrote:
> > Rendering of screws. Just posted the scene and macro's for generating a few
> > screw/bolt types. Working in a distressed steel material. Like flies, theses
> > will start showing up in my renderings. :)
> > Mike.
>
> I'm sure the threads must be a real challenge to get right.
>
> We had a guy work out a bunch of the math for getting the right thread profile,
> a while back.
> I'm sure there are other macros for generating screw threads - It's something
> I'm certain could be expanded into a field of its own.  Just paging through
> Machinery's Handbook, it's an extensive topic.
>
>
https://news.povray.org/povray.general/thread/%3C875zph8073.fsf%40munyer.com%3E/?ttop=437822&toff=200
>
> - BW

I kinda cheated with the treads. I use a macro for a cubic spine coil that's
driven by bolt length and radius - I use it to boolean cut the bolt. There's
probably a better way. Thanks for the info.
Mike.

 .

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