[pianotech] Regulation sequence advice sought

[Barbara Richmond]

hi Michael, 

*One* way to develop a better understanding of grand regulation/how a grand action works is to focus on the jack and how it is affected by each step of regulation. (LaRoy Edwards suggested that decades ago when I was at Little Red School House.) So, when you are doing your steps (I think there is value in knowing a sequence) and things start going wrong, stop, take a good look--what's the jack's position, is it not moving enough, is the jack moving too far, is it stuck? Why? 

It takes a lot of practice. Every time you figure out one problem, it will help you solve the next one coming up! 

Barbara Richmond, RPT 
near Peoria, Illinois 


----- Original Message ----- 
From: "Michael Staples" <mastaples at gmail.com> 
To: pianotech at ptg.org 
Sent: Tuesday, August 31, 2010 6:56:00 AM 
Subject: [pianotech] Regulation sequence advice sought 


Thanks Ron, 

That's another piece of the puzzle I need to understand. Speaking of understanding, I was pretty easily convinced off line that I should be studying towards an integrated understanding of grand action relationships instead of memorizing steps to accomplish regulation. In the practice I have already done, I've experienced that if things start to go wrong during regulation, my only tool to fix things is to start the sequence all over. So, help me out here, what source or study method can I use to gain this understanding? 

Michael Staples 
PTG Associate member 

>You're not there to learn to regulate action models. You're there using 
a model to try to learn to regulate a real piano action. Al's suggestion 
related to real pianos. Perspective... 

>Otherwise, since check height will affect hammer rise, I'd make sure of 
going over rep spring strength again after setting checking. Yes, I 
know, you should be looping through the process until everything checks 
out. The point isn't to do all the procedures through three iterations, 
but to check all procedures and do them again as necessary until you 
can't find anything wrong enough by your standards to mess with. 
Whatever you do, there will always be someone who thinks it's not good 
enough, and someone who thinks you're wasting time taking it that far. 
You'll never know what's "right", but you can try to correct everything 
that appears to be wrong. The end user will decide how you did. 
Ron N 






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