Norman,
As someone once said, "You don't have to be obsessive /compulsive to be a piano technician, but is sure helps!"
Ed Whitting, RPT, and I will be offering a class at the national convention, the sub-title of which is: "Mirco Changes That Yield Marco Results." IOW, big improvements can be made by "sweating the small stuff," ALL of it!
Alan
------------------------------
Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
------------------------------
Original Message:
Sent: 05-14-2025 08:03
From: Norman Cantrell
Subject: Gluing on wippen heel cloths
Alan
The set I was doing had the small under felt, which I did not replace, but it does cause a hump in the cloth. The rubber band helped clamp the free side in place. I do feel having the stretch consistent from wippen to wippen will give a more consistent regulation. We all are a little OCD in this business, it just depends on which gnat we choose to strain out of our lives.
Norman Cantrell
Original Message:
Sent: 5/14/2025 7:47:00 AM
From: Alan Eder
Subject: RE: Gluing on wippen heel cloths
Thanks for this, Norman.
Do you feel that without the rubber band, the tension in the heel cloth would not have been maintained?
Alan
------------------------------
Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
Original Message:
Sent: 05-13-2025 08:59
From: Norman Cantrell
Subject: Gluing on wippen heel cloths
Alan
I taught a class on this at SCRC and also recommended Hide glue. I glued one end on sets of 22 because of limited workbench space. You can get through all 88 this way. By the time you have done all of them, the glue is set enough to start the other side. I find that pulling them tigh and using a rubber band works well. I cut the cloth a little longer than needed and flush trim with nippers the next day when everything is completely dry.
I also demonstrated replacing the drop screw contact felt/leather at the same time.
Norman Cantrell
Original Message:
Sent: 5/12/2025 8:51:00 PM
From: Fred Sturm
Subject: RE: Gluing on wippen heel cloths
Hide glue is close to instant. Pull it tight, press down for a few seconds, move on to the next.
Original Message:
Sent: 5/12/2025 8:04:00 PM
From: Alan Eder
Subject: RE: Gluing on wippen heel cloths
Yes Fred, I would have guessed that you use hide glue.
When gluing the second end of the cloth, any idea of how much time thick hide glue needs to set until it will hold the cloth under tension?
Thanks,
Alan
------------------------------
Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
Original Message:
Sent: 05-12-2025 18:48
From: Fred Sturm
Subject: Gluing on wippen heel cloths
As you might guess, I use hot hide glue. Relatively thick. Same procedure.
Regards,
http://fredsturm.net
www.artoftuning.com"Education is not preparation for life; education is life itself." John Dewey
Original Message:
Sent: 5/12/2025 5:33:00 PM
From: Alan Eder
Subject: Gluing on wippen heel cloths
Greetings,
It has "been a minute" (read: DECADES) since I last replaced wippen heel cloths (AKA capstan cloths). Back then, under the tutelage of my first master of high-end piano work, Keith Hardesty (OBM), after thoroughly cleaning off the remnants of the previously used glue and cloth, we would use a hot glue gun to attach one end of the replacement cloth on each wippen heel. Glue gun glue sets quickly so, once through, we would go back and glue down the other ends, maintaining tension on the cloth until the glue sets (a matter of seconds, as I recall). Before endeavoring to do this again after all these years, thought I would inquire if anyone has experience to support a different adhesive for this and/or a different protocol.
Thanks,
Alan
------------------------------
Alan Eder, RPT
Herb Alpert School of Music
California Institute of the Arts
Valencia, CA
661.904.6483
------------------------------