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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: A good modeling software?Posted by Romy the Cat on: 6/27/2010
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 jessie.dazzle wrote:
From this and from the mention of 3/4" plywood, I deduce that the "curved" walls of these horns will likely be described by a series of facets (flat planes). It is said to be okay at these frequencies; this must assume a provision that the "resolution" at which the flare will be "pixelated" is not too coarse. What is too coarse? 1 or 2 planes per meter (ppm)? As the flare is more straight twoards the throat, this figure would logically vary along the flare's length.

It might also be desirable to further randomize the resolution by varying the axial dimension of each plane beyond what is naturally suggested by an economy-based interpretation of the flare.

I have addressed this subject above when I was telling about the circle’s chords and about their logarithmic order. Do not forget that in my case the sided will be de-synchronized , that will increase the “curve”…

Now, what is too coarse? This is very good question. I do not think that there is a definitive answer to it. Since the chords are in logarithmic order then the certain amount planes per meter will be good or bad only for certain location of curve. What I think doing is to come up with some kind of calculation that would introduce to the beginning and to the end of each chord the equal errors in relation to continues curve. I am sure that certain amount planes per meter will not be the principle as the chords will be most likely different size at different locations.
All, that I need now is good modeling software that would do it for me, I do not want to do the math manually.

The Cat

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