New Wessel, Knickel & Gross plate suspension system

[Barbara Richmond]

Hi Jude,

Would you mind sending me your pictures  as full-size files?

Thank you.

Barbara Richmond
  ----- Original Message ----- 
  From: Jude Reveley/Absolute Piano 
  To: Piano Tech List 
  Sent: Thursday, June 26, 2008 7:11 AM
  Subject: New Wessel, Knickel & Gross plate suspension system


  Hey Dale, I thought you were supposed to be on vacation. Well since you started this thread, here's a late entry...

  I'm also trying this system out for the first time so here's a few comments:

    1.. Yes, you probably should make whatever modifications to the soundboard & rim in terms of providing a counterbore wide enough to allow the plate to be as low as you'll need it. If you are doing this, chances are that you are also making new bridgecaps, so if the original plate is sitting so low along the rim as it does on many Steinways, you should probably address this at the bridgecap first. 
    2.. Many Masons have countersunk holes for the perimeter lag screws that will not accommodate the new suspension bolts of any system. Ron N. suggested to me that I fill the holes with epoxy and "plate grindings additive." This would work and since I prime my plates, there would be no bonding issues. Alternatively, I decided to use a counterbore and pilot that would accommodate a SS washer. These washers can be epoxied in place, the countersink and hole will also be filled and then the washer gives a pilot for redrilling the hole. The washer will be left unfinished solving any problems of the bolt marring the paint as it is tightened down. 
    3.. Cost. Yeah well that's always the rub. It's an option that has to be passed on to the customer. If we're talking a few bucks on big job, I'm happy to support the folks at M&H and their effort to not only resurrect WNG, but to add some revolutionary thinking to the catalogue. I like MSC too.
  Thanks Frank. This is a fine design and I especially appreciate the tip on tight tolerances for the pilot. 

  Jude Reveley, RPT
  Absolute Piano Restoration, LLC
  Lowell, Massachusetts
  (978) 323-4545
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