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magrid configurations
Posted: Sun Jun 10, 2012 10:31 pm
by hanelyp
I've drawn up some magrid options assuming:
- toroidal coils
- torid magnets and virtual magnets covering equal areas of the sphere
- toroid minor radius set to cover 3/4 of the gap between torids
Note how much skinnier the 20 and 8 toroid forms are than their 12 and 6 sided duals.
Basic 6 toroid
8 toroid
12 toroid
Rhombic Dodecahedron base
20 toroid
30 toroid, colors added to make sense of the many parts.

Posted: Mon Jun 11, 2012 2:31 am
by ladajo
I like the 12.
Posted: Mon Jun 11, 2012 2:31 am
by ladajo
Nice work.
Posted: Mon Jun 11, 2012 8:13 pm
by KitemanSA
The first two (6 and 8) are just complements of each other. They are both approximate cubeoctahedrons. In the "6", the 6 square faces of the cubeoctahectron are the real toroidal magnets and the 8 triangular faces are virtual. In the "8" it is the triangular faces that are real and the squares that are virtual. I am not sure the 8 is any better than the 6, but it could be.
I suspect the 12 and the 20 are the same situation for the icosidodecahedron.
Posted: Mon Jun 11, 2012 10:25 pm
by hanelyp
Kiteman, you are correct that the 6 and 8 are duals, as are the 12 and 20.
A couple more:
32 toroids, a merge of the 12 and 20 side layouts. The rumored Iranian polywell is supposed to have 32 magnets, in unspecified layout.
42 sides, 12 and 30 side merge.

Posted: Tue Jun 12, 2012 2:22 pm
by rjaypeters
Which software are you using?
Posted: Tue Jun 12, 2012 9:53 pm
by hanelyp
For these drawings, openscad. I can post source code for the models if people are interested.
Posted: Wed Jun 13, 2012 5:17 pm
by rjaypeters
Not for me, thanks. I did a little looking at openscad. I find the idea of a modeler-from-script counter-intuitive (but potentially interesting for serendipity). I admit my bias stems from my work with interactive modelers.
Posted: Wed Jun 13, 2012 5:18 pm
by krenshala
Both methods have their place, as there are somethings that are easier to do via scripting, while others work better to directly manipulate the polys "visually".
Posted: Wed Jun 13, 2012 8:13 pm
by rjaypeters
I can see that particularly for things like... screw threads! A more tedious chore to model I hope never to imagine. In addition to being a thankless task, modeling screw threads is or should be useless and unnecessary.
Posted: Thu Jun 14, 2012 3:56 am
by Endersworld
Posted: Thu Jun 14, 2012 9:01 pm
by krenshala
Those pics, and the talk of modeling via scripting, makes me want to break out POVRay again for some playing around.
