Yes, exactly. No matter how you shape or angle the capstain, it has to slide. Mike Ron Nossaman wrote: > > It strikes me that a good starting place is basic geometry, with the > changing total distance from wippen center to balance rail hole via > capstan contact point. If you start with the contact point below the > magic line and end up with it above, that total distance changed from > longer to shorter, to longer. If you set the contact point at the > magic line at either the top or the bottom of the keystroke, the > length change is one way. With the magic line centered in the stroke, > how it it possible to maintain non sliding contact with the direction > reversal? With the contact point not passing *through* the magic line, > it very likely is. > Ron N > >
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