aftertouch/front rail punchings

[Jim Coleman, Sr.]

Hi David:

I believe I set my aftertouch the same on sharps as on naturals. I think 
this is in contradistinction to setting the keydip the same on both. Are
we understanding this the same? If so, good.

Now I wonder if your understanding of the fact that the dampers of the 
sharps end up closer to the upstop rail than the dampers of the naturals
do, is the same idea as mine? (ie when the damper upstop rail is set just 
barely above the peak of the rise of the sharps dampers, there is more 
clearance between the peak of the rise of the naturals dampers and the 
upstop rail)

Jim Coleman, Sr.

PS I worry a little more about the compression of the balance rail 
punchings than about the compression of the front rail punchings. This 
is where I think one is more likely to lose aftertouch, unless of course
one is using very thin punchings to start with on the balance rail. In
that case, there is a tradeoff with the noise problems.  does this make
sense to you?  JWC


On Sun, 29 Mar 1998, dpitsch wrote:

> Interesting that you iron the front rail punchings.  As soon as I get a shipment of FR felt
> punchings, I string them up on a 1/8 threaded rod.  Screwing larger FR cardboard punchings in
> from each end, the felt is left to sit in this compressed state for months.  When I use them
> on an action that needs to be refelted, they are so stable that I can set the aftertouch very
> confidently.  Years later, these actions still have the key dip I originally set.
> 
> By the way, am I the only tech who sets the dip in the sharps as equal aftertouch to the
> naturals?  What about it LIST?
> 
> Roger Jolly wrote:
> 
> > Delwin D Fandrich wrote:
> >
> > > It's also misunderstood by some action designers who simply don't leave enough room
> > > between those ridiculous jack letoff dowels to get at the adjustment screws.
> >
> > Have you tried the Yamaha made tool, nice and thin, best I've used thus
> > far.
> > I've had
> > > several "technicians" tell me that those screws were pre-set at the factory and were not
> > > supposed to be tampered with in the field.
> >  Not a bad idea (SMILE), the way I've found some jacks set????
> > > This is especially true with capstan felts, jack letoff punchings, hammershank knuckles
> > > and center and front rail felt key punchings.
> > Totally agree. I frequently iron front rail punchings to attain a solid
> > and well determined dip.
> >
> > Roger
> 
> 
> 
>