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Rough key feel in aftertouch region #2913632 11/18/19 11:44 PM
Joined: Oct 2019
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12root2 Offline OP
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I'm learning to regulate my Baldwin console and have noticed the key doesn't descend smoothly in the aftertouch region if I press the key slowly. I noticed this checking the let off distance, but much less so playing normally. The aftertouch is quite large now that I've recaptured some lost motion. Thank you

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Re: Rough key feel in aftertouch region [Re: 12root2] #2914001 11/19/19 09:51 PM
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P W Grey Offline
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12root2,

It is possible (depending on the age) that you have one of those Baldwin's that has Corfam instead of leather on the hammer butt and catcher. When you feel with your finger dies it feel "hard as a rock"? Also, if you have had green dust inside (from the backchecks being chewed away) then you probably do.

Corfam was a failed leather substitute (somebody supply the years it was used...) that hardens and gets rough. If this is what you have then it is probably what you are feeling in the action (if I'm reading your description correctly). If this is not the issue, perhaps you could supply a pic or two of it and we can go from there.

Pwg


Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
https://www.youtube.com/watch?v=PK0T7_I_nV8
Re: Rough key feel in aftertouch region [Re: 12root2] #2914433 11/20/19 10:33 PM
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12root2 Offline OP
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PWG,

Thank you for the bit of history. It feels like leather and is soft, not rough, but not super smooth either. Here's a (bad) picture from my phone.

[Linked Image]

Re: Rough key feel in aftertouch region [Re: 12root2] #2914543 11/21/19 07:59 AM
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P W Grey Offline
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12root,

Looks okay to me. Not Corfam.

It's hard to figure out exactly what you are feeling, but it basically sounds like a friction issue somewhere. You might try looking at the key pins. They should be clean and polished bright and smooth. Also the key bushings might be a but worn, mis-shape (wrapping around the pins). Without more detailed information I'm at a loss to pinpoint anything.

Pwg


Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
https://www.youtube.com/watch?v=PK0T7_I_nV8
Re: Rough key feel in aftertouch region [Re: P W Grey] #2914598 11/21/19 10:06 AM
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12root2 Offline OP
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Won't hurt to give them a shine. They're not too bad, but not that great either. I'll see if I can feel it by activating the wippen directly.


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