[TheForge] helical railing calculations

[Andy Vida]

Agreed.  It has to be.  It is bent, which defines a curve of some sort.
The curve must be circular because it is continuous and consistent over
its length ad infinitum.  In theory you could spiral on into the heavens
without cease in a consistent fasion, which implies a circular basis.


Chris Kilpatrick wrote:
> 
> Yes, Bruce, it is.  I am not an architectural blacksmith, but I am a fiend for math.  My wife once asked me if she had to learn all the math I do on smithing projects to learn blacksmithy.  My sheepish grin and mumbled, near silent "no" proved to her I was a numbers junkie.
> 
> -Chris K.
> 
> ----- Original Message -----
> From: "Bruce Freeman" <FREEMAB at pt.fdah.com>
> Date: Wed, 22 Sep 2004 10:00:11 -0400
> To: <theforge at mailman.qth.net>
> Subject: [TheForge] helical railing calculations
> 
> > Some of you may recall that I play with math for entertainment.
> > Recently, I have played with the geometry of helices, as in helical
> > railings for circular staircases.  The results were interesting.  The
> > thesis I was examining was the feasibility of constructing these
> > railings from four FLAT curves, each representing 1/4 rotation.  I think
> > the answer is yes, but I haven't tested it yet.  The question I
> > addressed was, what would be the radius of such a curved railing.  That,
> > I got an answer for.
> >
> > Is this subject of any interest or use to anyone on this list?
> >
> > Bruce
> > NJ
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