Re: The Secret to making a pianocorder soft -- Pianocorder Forum

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Subject: Re: The Secret to making a pianocorder soft

Author:
Tom Lear

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Date Posted: 10:20:32 10/07/03 Tue
In reply to: Scott Forsberg 's message, "The Secret to making a pianocorder soft" on 19:23:20 09/25/03 Thu

The capstan line referred to is the center pivot of the key, so would mean moving your solenoid rail some inches in the direction toward the front of the piano from its present location.

You will need to slide out the action and see where the pivot line is located and if you will have to do further cutting. You will want to keep the cutting on the bottom of the action to a minimum so as not to weaken the structure unnecessarily. Maybe you can keep the slot to a width of only 3/8" to 1/2".

Of course, you will have to disassemble the action somewhat to cut the slot. A least the keys will have to be removed. If the hammer action can be removed from the bottom board as a unit, I would remove it too. If not, be super carefull to keep any wood shavings out of the works.

You will want to take measures to eliminate the problems this new positioning of the rail creates for removing the action again in the future.

You should design some sort of lifting system for the rail that will allow it to be dropped the necessary distance (a couple of inches) to free the action when needed. Something along the lines of additional larger hanger brackets with threaded rods and wing nuts. This would eliminate having to disconnect all the wiring and complete removal of the rail, which would be a royal pain in the butt.

No wonder the tech was upset!

I can see where this might allow the Pianocorder to play softer, but then the Fortissimo range is going to be reduced, but more worrisome is how this will affect the leverage of the entire key system. If the keys are loose at the capstans I would expect the solenoids to not only pivot the key but may also lift it a bit off the capstand bottom felt. This could create all sorts of irregularities and unevenness of playback throughout the keyboard, that would be impossible to regulate.

The whole operation sounds like it could be a lot of time and energy to end up with a real nightmare. But, if you have the time and think it's worth trying, who knows?

Just be sure you can return the rail to it's original location in case moving it is not satisfactory..

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Replies:

Subject	Author	Date
Re: The Secret to making a pianocorder soft	Roger Dalziel	11:23:58 10/08/03 Wed
Re: The Secret to making a pianocorder soft -- Tom Lear, 23:20:07 10/10/03 Fri