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#2035517 - 02/18/13 09:40 PM Easiest action to replicate by hand
TecFlip Offline
Full Member

Registered: 09/16/12
Posts: 122
Loc: Kansas City, MO
I have been doing some modeling of actions with wood, but found that most of what i am doing is too complicated. What are some of the simplist actions you know of. Alsp, what is the difference between a fixed backchech and a backcheck connected to the hammer?

Edited by TecFlip (02/18/13 09:41 PM)
-Jon Lee
YouTube Channel - http://www.youtube.com/user/JleewSongs
Yamaha P-35b

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#2035532 - 02/18/13 10:40 PM Re: Easiest action to replicate by hand [Re: TecFlip]
Zeno Wood Offline
Full Member

Registered: 11/20/07
Posts: 496
Loc: Brooklyn, NY
Instead of making action parts from scratch, why don't you call around and ask a piano technician for some old spare parts?
Zeno Wood, Piano Technician
Brooklyn College

#2036634 - 02/20/13 09:40 PM Re: Easiest action to replicate by hand [Re: Zeno Wood]
TecFlip Offline
Full Member

Registered: 09/16/12
Posts: 122
Loc: Kansas City, MO
I have a project in mind of creating a very simple action. Kind of a try it before i make a whole piano.
-Jon Lee
YouTube Channel - http://www.youtube.com/user/JleewSongs
Yamaha P-35b

#2036637 - 02/20/13 09:48 PM Re: Easiest action to replicate by hand [Re: TecFlip]
accordeur Offline
1000 Post Club Member

Registered: 06/23/06
Posts: 1247
Loc: Québec, Canada
By hand I don't know. But simpler, maybe.

I've never actually played one of these, but I have been impressed for a long time.


Jean Poulin

Musician, Tuner and Technician


#2036662 - 02/20/13 11:18 PM Re: Easiest action to replicate by hand [Re: TecFlip]
Chris Storch Online   content
Full Member

Registered: 08/13/09
Posts: 236
Loc: Massachusetts
This toy piano has a rudimentary action in it. You may want to take some ideas from this design. The photos of the parts should be self-explanatory, but if not, let me know and I'll post a video of it in operation.


Hope this helps,
Chris S.

Edited by Chris Storch (02/20/13 11:22 PM)
Chris Storch
Acoustician / Piano Technician

#2036673 - 02/20/13 11:55 PM Re: Easiest action to replicate by hand [Re: TecFlip]
BDB Online   content
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 22270
Loc: Oakland
Certainly the easiest action to replicate is the clavichord action.

Probably after that comes something like the Zumpe action, where a fixed stick pushes against something like a knuckle, and just slides out from under when it is raised high enough. That would be like the action on a Rhodes.

A basic Viennese action is a little more sophisticated, but not much.
Semipro Tech

#2036810 - 02/21/13 08:03 AM Re: Easiest action to replicate by hand [Re: TecFlip]
Withindale Offline
2000 Post Club Member

Registered: 02/09/11
Posts: 2211
Loc: Suffolk, England
Even simpler than BDB describes would be a fixed stick, with let off determined by key dip, and a nifty catcher. That should repeat well.

PS Google's Zumpe Piano Action images suggests a catcher is not necessary.

Edited by Withindale (02/21/13 01:56 PM)
Edit Reason: PS
Ian Russell
Schiedmayer & Soehne, 1925 Model 14, 55" upright
Ibach, 1922 49" upright (project piano)

#2037530 - 02/22/13 01:53 PM Re: Easiest action to replicate by hand [Re: TecFlip]
TecFlip Offline
Full Member

Registered: 09/16/12
Posts: 122
Loc: Kansas City, MO
i was thinking of making a modified version of a Rhodes. i have also tried the fixed jack and key dip let off. It doesn't seem to create enough force.
-Jon Lee
YouTube Channel - http://www.youtube.com/user/JleewSongs
Yamaha P-35b


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