Pianodisc, Midi files and such

[Dean May]

Of course there are lots of different ways to do it. But what they have come
up with is incredibly simple, pretty inexpensive to manufacture, and
remarkably bullet proof. If the rubber turns hard in 15 years they will also
be pretty easy to change.

Dean

Dean May             cell 812.239.3359
PianoRebuilders.com   812.235.5272
Terre Haute IN  47802

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On Behalf
Of gordon stelter
Sent: Thursday, April 01, 2004 9:34 AM
To: Pianotech
Subject: Re: Pianodisc, Midi files and such

Thank you, Robin!
     Now, it will be interesting to see, in 15 years
or so, when the rubber tips on the plungers have
ossified ( my favorite word today! ) and cracked, if
the push rods carve out the backs of the keys.
     All this could be avoided, I believe, with a
capstan-type tip, and some sort of threaded adjustment
on the rod, with a lock nut. Either at the tip end, or
by athreaded rod through the solenoid with a nut on
each side.
     Thump

--- Robin Hufford <hufford1@airmail.net> wrote:
> Hello Gordon,
>      You are right - there is no way to individually
> adjust the lost
> motion between the plungers and the keys.  Too much
> lost motion and the
> problems with soft playing you describe occur.
> However, the height of
> the rails ( which is in three sections) to which the
> solenoids are
> attached,  is adjustable at the hangers and this
> makes it possible
> during installation or afterwards, to control the
> lost motion - at least
> up to a point and in sections.  This is most
> important, along with
> proper adjustment of  the force developed by the
> solenoid during the
> set-up process.
> Regards, Robin Hufford
>
> gordon stelter wrote:
>
> > I have only worked on one PianoDisc, but many,
> many
> > player grands from the 1920's. The one PianoDisc
> piano
> > I serviced, an S&S "M", surprised me: as there
> seemed
> > to be no way to individually adjust "lost motion"
> > between the solenoid plungers, and the backs of
> the
> > keys, as on a  vintage player piano! This
> deficiency,
> > as I percieved it, would make it difficult to
> achieve
> > a  low and balanced "minimum intensity, or playing
> > volume, without missing some notes.
> >    I was also dismayed by the little rubber caps
> on
> > the solenoid plunger rods. It seemed that these
> would
> > soon enough be worn through by the rods, which
> would
> > then dig into the backs of the keys. Has anyone
> seen
> > this happen ???
> >     In any event, I believe that these modern
> player
> > manufacturers could take some lessons from the
> > " builders of yore", and at least put capstans, or
> > some other smooth, adjustable mechanism, a top
> these
> > solenoids.
> >      Comments?????
> >      Thump
> >
> > --- Alan Forsyth
> <alanforsyth@fortune4.fsnet.co.uk>
> > wrote:
> > >
> > > >From "Auld Reekie" to Old Riccy,
> > >
> > > ...."Last I checked in Norway a full player and
> > > record install cost about 60
> > > grand Norwegian.... to the customer...which
> works
> > > out to about 8500
> > > USD".....
> > >
> > > Okay, so that works out more or less the same as
> > > what we have to pay here.
> > > but do you think it is worth the money for what
> it
> > > does. Can such an amount
> > > really be justified considering the range of
> > > synthesizers, electronic pianos
> > > and digital midi recorders out there that are so
> > > much cheaper, even though
> > > they don't quite serve the same purpose. I know
> the
> > > price of Pianodisc may
> > > be inflated for us because we have to go through
> > > Pianodisc Europe and when
> > > there are a whole lot of middle men involved the
> > > selling price inevitably
> > > becomes distorted. Perhaps this is the reason I
> have
> > > as yet not come across
> > > an installation. Plenty of Disklaviers around
> > > though.
> > >
> > > Leaving you in pieces,
> > > Alan Forsyth
> > > calling from "Auld Reekie"
> > >
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> >
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