On Sun, Nov 06, 2011 at 07:07:59PM -0600, Kazimierz Verkmastare wrote:
>  Is a perimeter weighted wheel better than a
>    solid disk, 

Interesting question. The other way is to achieve the same effect
would be to make a wheel with parts removed, e.g. Jolivet's by
Mousnier:
http://a2.ec-images.myspacecdn.com/images02/36/dd07b2041df1438e94879a155a020643/l.jpg
where apparently rather a lot of the wheel has been cut out:
http://philippe.mousnier.free.fr/wp-content/uploads/IMGP5036.jpg
Also that appears to show the multiple-ply nature of those wheels.

Cheers,
Dave (not a builder, but fascinated by the concepts and decisions
involved)

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