Hi folks. I got to thinking about this position that the hammer cannot be felt at impact because there is no coupling between the hammer and key at impact. Actually you see... this isnt really the case. There is a direct line between the hammer, hammershank flange, dropscrew, top whippenlever to capstan which couples pretty darn directly the whole way. In addition there is a slight connection through the jacktail/letoff button...tho admitedly this second seems pretty insignificant on the surface of things.. Anyways I decided to throw a little cheapo accelerometer on the whippen of my grand action model to see if I could find out anything and low and behold.... lifting the hammer up so the knuckle is well off the lever, then taping on the hammer with a hammer shank showed a clear signal with the repetition lever in contact with the drop screw. But when I put a peice of felt under the rep lever height regulating button to force a gap between the drop screw and repetition lever I couldnt be sure of a signal. Ok.. this is a cheapo makeshift experiment and I want to do this with some better equipment, yet still it pointed pretty clearly in the direction that hammer impact information is delivered directly to the key. Comments ? RicB
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