Pianotech

Low tech adjustable action

  • 1.  Low tech adjustable action

    Registered Piano Technician
    Posted 10-14-2023 20:17

    This came up in another thread so I thought I'd post for the sale of interest.  This is my current approach to allow for adjustments to the touchweight (and inertia).  I set the TW with these clips attached (mini binder clips) to 37g BW with FW (at C40) of about 25 grams.  That's about 85% of Stanwood FW max (my default setting).  By moving the "slider" up or down the shank you get about 4 grams range in the BW (~35 - 39 g) and accompanying inertia  decreases or increases.  In this photo I've not yet removed the handles.  I place the opening up on the shank which allows you to spread them easily with a wide blade screwdriver to slide them up or down.  (BTW the lines on the hammers are voicing quadrant guidelines, I leave them there).  



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    David Love RPT
    www.davidlovepianos.com
    davidlovepianos@comcast.net
    415 407 8320
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