Pianodisc, Midi files and such

gordon stelter lclgcnp@yahoo.com
Thu, 1 Apr 2004 06:36:35 -0800 (PST)


Thank you, David. This is a relief. I still wonder
about the rods eventually jabbing through the rubber,
though.
     Thump

--- Dave Bunch <pdtek@mchsi.com> wrote:
> Actually, there is no lost motion. Properly
> installed, the back of the key
> holds the piston down against a very lightweight
> spring, about 1/4"lower
> than when the action is removed. The rubber tips are
> always in contact with
> the keys at rest position. The player system is then
> played chromatically up
> the scale while the installer checks for full dip at
> the front rail. When
> this is achieved without the solenoids being in a
> position where they would
> lift the keys off the back rail, you have a proper
> regulation. From then on
> the individual note expression is set with the
> system software. If done
> properly, expression and dynamics are very good at
> all volume levels.
> 
> Dave Bunch
> 
> ----- Original Message -----
> From: "Robin Hufford" <hufford1@airmail.net>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Thursday, April 01, 2004 2:16 AM
> Subject: Re: Pianodisc, Midi files and such
> 
> 
> > 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"
> > > >
> > > >
> _______________________________________________
> > > > pianotech list info:
> > > https://www.moypiano.com/resources/#archives
> > >
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> >
> > _______________________________________________
> > pianotech list info:
> https://www.moypiano.com/resources/#archives
> 
> _______________________________________________
> pianotech list info:
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