Nice video. So it looks like they make the first cut right at the edge of the notch taking minimal material. The second cut removes the bulk of material but not at the pin line, the final cut establishes the cut at the pin line. To do that for the longer notches would require a much wider chisel.
Here's a video of the Steinway factory notching. Note that they use basically a sharpened paint scraper and how flexible it is.
https://www.youtube.com/watch?v=PSZI5hGMThwAnd here's one that was uploaded by Nick Gravagne.
https://www.youtube.com/watch?v=q7b-UIJou3QNotice the thickness of the bridge cap on this one. One of the difficulties to overcome with the long notches is not going into the bridge root which, with classically very thin caps on Steinway bridges, forces you to scoop the notching in order to avoid that. When recapping bridges planing down the bridge root so that you put a much thicker bridge cap helps to avoid that concern and allows you to cut the notch worrying less about how much you scoop.
My older method of recapping was to remove the original cap in one piece, plug the old bridge pin holes and use the original bridge root height. My current method is to plane down the bridge root and install a much thicker cap.
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David Love RPT
www.davidlovepianos.comdavidlovepianos@comcast.net415 407 8320
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Original Message:
Sent: 11-08-2021 10:11
From: Jim Ialeggio
Subject: Notching the low tenor in a concert grand or long piano
fazioli cutting notches from the side
at 12:55
although this still does not show the long notches...
interesting jig just before this for cutting the bridge height notches
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Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026
Original Message:
Sent: 11-08-2021 10:03
From: Jim Ialeggio
Subject: Notching the low tenor in a concert grand or long piano
Talking to a tech this morning, interestingly, they said they read in Mario's book that Fazioli notches from the side.
I'm wondering if anyone has seen a video of this? I've come in from the side, when grain direction on 90 deg quartersawn stock was impossible. But boy it takes eons and is not as clean as the other direction.
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Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026
Original Message:
Sent: 11-06-2021 19:16
From: David Love
Subject: Notching the low tenor in a concert grand or long piano
Good question. I had to think about this. The first cut described there's no scoop. The following cuts that start out at the end of the notch there's also very little scoop-probably none at the first cut. As you work back toward the pin line there's progressively more scooping and the final cut that bisects the pin line has the most scooping. All done with the flat side of the chisel down.
Re Chris's comment, I don't lengthen the chisel, I have several chisels of varying length and width. I find the longer chisels are easier for that section and because of the length of the notch the longer chisels also prevents me busting my knuckles on the edge of the bridge. I use shorter chisels for the treble section and bass bridge I also tend to lay out bass bridges with the pin line perpendicular to the strings not a continuous bevel that produces non equal speaking lengths. Not convinced you can hear the difference but I do it anyway, usually.
Quality chisels are so important for this and I've found nothing better then the Japanese chisels. Good ones are quite expensive but worth it.
Of course you can also make a bridge notcher as has been discussed by Del and also Ron Nossaman. I've seen one in action at the Charles Walter factory. Very nice and very fast.
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David Love RPT
www.davidlovepianos.com
davidlovepianos@comcast.net
415 407 8320
Original Message:
Sent: 11-06-2021 16:12
From: Jim Ialeggio
Subject: Notching the low tenor in a concert grand or long piano
Do you scoop at the start of the pin line, or just do a straight unscooped plane from beginning to end?
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Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026
Original Message:
Sent: 11-06-2021 15:07
From: David Love
Subject: Notching the low tenor in a concert grand or long piano
Use a longer handled chisel. First cut, at the saw cut line and tilt the chisel toward the saw cut and cut the full length of the notch so the width of the cut starts very narrow and widens to only about 1/4" at the end of the notch. Subsequent cuts starting toward the end of the notch and work back toward the pin line with each subsequent cut flattening the chisel gradually until the last stroke when the chisel should be flat as you make the cut at the pin line and you're just removing a very thin layer the length of the notch.
I use Japanese chisels and hone them frequently.
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David Love RPT
www.davidlovepianos.com
davidlovepianos@comcast.net
415 407 8320
Original Message:
Sent: 11-05-2021 20:43
From: Jim Ialeggio
Subject: Notching the low tenor in a concert grand or long piano
My bridge notching these days is pretty nice. But I still struggle with the lowest octave of the long bridge in a long piano like a concert grand. On the rest of the bridge, the chisel, flat side down, 25 deg bevel on the chisel, is used at a fairly steep angle and works quite well, even on tough grain. However, those really long flatish notches at the low low tenor, require, at least the way I use the chisel, a flatter angle to traverse that very long notch. This tends to lift grain, for me, even with a razor sharp tools
Checking out various youtube demonstrations, of course, they all show notching the easy part of the bridge....I see no demonstrations of this long notch area. Some folks notch bevel side down, but I have never been able to control a cut with the bevel side down. I use rather short Japanese chisels
Any perspectives on this particular part of the bridge?
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Jim Ialeggio
grandpianosolutions.com
Shirley, MA
978 425-9026
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