Re: [ATM] PLOP Calculations

["Jeff Anderson-Lee" <jonah@cs.berkeley.edu>]

Mark Holm wrote:

> Even with variable angles on, the 54 point design looked symmetrical.  
> I suspect that one could fix the angles near where it ended up, in 
> order to get a fully symmetric design, and still have excellent 
> support.  Using variable force did move some of the triangle pivots 
> away from their centroids, but not extremely so.  Also, the 
> proportions of the triangles are not too extreme.  If the triangles 
> are cut with a milling machine, there should be no issues.

The 54 point cell with varying angles IS symmetrical and does (if I may 
say so) give excellent support.  When I was designing the autocells I 
misunderstood what was intended by saying no to "allow angles to 
vary".   If you check out the cell design you will see the angles are 
fixed at a non-zero value.  Pretty straightforward.

I've since designed a true varying angles 54 point cell.  When David 
gets back from his summer vacation I'll pass it on to him.  In the 
meantime, if you want to play with it, just send me an e-mail.

As for varying forces, I'm not a fan in general, but there can be 
exceptions.

Jeff

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