Virtual Capstan

[Ron Nossaman]

> > I doubt any significant friction effect, though there may be. It's
> > primarily just leverage. Using a random action model I have on hand for
> > dimensions, 1g placed on the key where the magnet would be adds 0.79g to
> > the touch weight.
>
>How can this be.... ? adding 1 gram to the key where the magnet is has to
>result in less then half a gram at the key front. In fact since the KR is only
>0.45 at that spot... it should add only 0.45 grams extra weight to the
>existing TouchWeight.

Sorry, I misspoke. I meant equivalent at the capstan. That's how I set up 
my spreadsheet and didn't convert when I wrote this.


> > 1g on the wippen where the magnet would be adds 1.27g to
> > the touch weight for a net +2.06g to the touch weight. 1g of magnetic lift
> > adds 0.79g, and removes 1.27g, for a net loss of 0.48g to the touch. So 1g
> > magnets must produce at least 2.06g lift to break even.
>
>In the measurements I just took, adding the 2 grams of the whippen magnet
>assembly increased the whippen radius weight taken at the cushion by 2.4
>grams... which gets multiplied by the key ratio of 0.51 yielding 1.22 grams
>increase at the key front. Thats half what you figure here. This is born out
>by directly weighing them... I put 2 magnets at that point after zeroing the
>scale. The magnets weighed 2.5 grams and the change in the scale was 1.1
>grams.
>
>My measurements show a total increase of dead weight mass of 4.5 grams, 2.5 on
>the key 2 on the whippen, translating to an increase at the front of the key
>to the existing touch weight of 2.32 grams, and this for 2.25 times the amount
>of mass you are figureing on

Again, effective weight.at the capstan. When I do something inside out, I'm 
consistent.