Touchweight tool

[Richard Brekne]

Hi folks.

Heres a cute little spreadsheet using a bezier curve formula and simple 
leverage addition to calculate hammer radius weights, and key radius 
weights.

Action Balance Spreadsheet 
<http://www.pianostemmer.no/files/hammer_%20key_radius_weights_generator.xls>

Hope you find it usefull.

Note that the Balance Weight Ratio arrived at through this method will 
vary slightly from other ratio quantities  resulting in a BW that can be 
1-2 points off your target depending on how you measure.  A bit of 
experimentation however will allow you to correct for this easily enough.

My own measurements for use with this system are to be found at

Action Balancing <http://www.pianostemmer.no/action_balancing.html>

This is still in a beta testing stage, so any comments are welcome (mail 
be privately please). The methods and tools are free for anyone to use.

Cheers
RicB