Hammer boring calculation - Spreadsheet

This spreadsheet is made to help you to order your hammers, or to calculate how to drill them. 
It gives you the complete chart with the correct datas, and you can't mess it up!
 
On the first page, you can check your actual action design and see what you can do to improve it.
 
You can also select the hammer strike weight curve, according to the Stanwood standard curves, and display it on the sheet. So it makes your work easier when you are preparing your hammer heads. This sheet isn't made to calculate your strikeweight though. 
 
To know how to take your measurements in the piano, click here to download the information.
 
We recommend you to read our article about Piano Action Design. 
 
You will receive links to download your digital product in the thank you page of the checkout, along with an emailed link that will last for 30 days.
If you get any trouble following your purchase, please send us an email at info@pianodesign.ch and we will find a solution as soon as possible! Thanks!