[CAUT] Strange capstan reconfiguration.

Chris Solliday csolliday at rcn.com
Sun Apr 25 18:08:43 MDT 2010


It's the hammer weight that is married to the Ratio that is the ultimate arbitor. So in this case since it hasn't been stated but most every thing else has, the answer is these should be light hammers. IF so they will work well with this set up. ARe they light?
Chris Solliday
  ----- Original Message ----- 
  From: David Love 
  To: caut at ptg.org 
  Sent: Saturday, April 24, 2010 4:11 PM
  Subject: Re: [CAUT] Strange capstan reconfiguration.


  Maybe they did it with the idea of removing lead, but moving the capstan back and replacing with turbo wippens would be a wash.  What's the action ratio?  If it regulates with 1 7/8" blow and "normal"  dip I would guess it's high.  Make a gauge and check the ratio by dip/hammer rise relationship.  The geometry line is probably less important than the overall ratio.  

   

  David Love

  www.davidlovepianos.com

   

  From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Paul T Williams
  Sent: Saturday, April 24, 2010 11:47 AM
  To: CAUTlist
  Subject: [CAUT] Strange capstan reconfiguration.

   

  Hi All, 

  I pulled an action from one of our piano faculty's Steinway B's yesterday since it's just "not working" right.  Besides the standard hammer reshaping, rebusing the keys, regulation issues etc., I found that the capstans had been moved BACK some 7mm back and then turbo Renner wippens installed. I'm wondering why?  Wouldn't moving capstans back make the action heavier?  To "fix" this, would the turbo wippens make up for this in a way.  Why mess with what was there?  This is a Steinway B from the 20's. I failed to check the geometry "line" before moving the action to my shop.  Why, you might ask?  Our elevator died and will not be fixed until mid-June, and the Special Olympics will be here in July, so I hope they'll be on time for the fix. I had to take the stack down the stairs on one trip and then the keyboard on a second trip. What fun this is! I'll soon check out the geometry line next week and put them back together, but want to get onto the key rebusing project soon.  All else is "normal". It plays like a truck, but I found the blow distance at 1 -7/8" instead of 1-3/4" and the jacks are waaay too far under the jacks, so that will help a bunch fixing that. The key height and dip are perfect. 

  What is going on with the capstan reconfiguration?  All thoughts welcome. 

  Paul 
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