Re: tri-hubs and quad-hubs ?
- To: domesteading at sculptors dot com
- Subject: Re: tri-hubs and quad-hubs ?
- From: Charles J Knight <c dot knight at juno dot com>
- Date: Sat, 14 Jul 2001 17:35:07 +0000
> > I designed an easily-fabricated hub that has no net offset. It's
> How about the hubs to make a rhombic dodecahedron ?
> This would require 8 tri-pod hubs and 6 quad-pod hubs...
> per structure.
Why not the hubs for a truncated icosahedron? If my imagination
is working right (I'm fighting an infection, so it may not be) I
believe all the vertices could be described by 1, single, 3-armed
All vertices join 1 pent and 2 hexes, right? So we'd need a
single, fixed connector hub with angles of 120, 120, and 108.
I'm a big advocate of "soccer ball" geometry, because everyone
already knows what they look like. It's easy to tell someone
to take some hex and pent panels and build a soccer ball. If
we "color code" them black and white, the final construct even
looks like a soccer ball. It's comparatively hard to explain how
to construct a 4V alternate icosa, even if the geometry itself is
more elegant and more easily used for larger structures.
-- Chuck Knight
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