The heat from the screw will soften any glue, natural or unnatural.
Original Message:
Sent: 03-30-2023 11:14
From: Roger Gable
Subject: Upright Hammer Boring Jig
I'm curious as to whether the Spurlock method will work with modern pianos that don't use hide glue. Anyone use that technique on non-hide glue joints? If it doesn't work, then the boring jig may not be dead.
Roger
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Roger Gable RPT
Gable Piano
Everett WA
(425) 252-5000
Original Message:
Sent: 03-30-2023 10:41
From: Bill Ballard
Subject: Upright Hammer Boring Jig
Peter went:
I haven't used mine in years but the extraction method that Bill Spurlock taught has served me well.
I Read Bill Spurlock's Pace Lesson on this (NOV '93) on my way out the door yesterday. I wish I had read yours, because Spurlock was short on details about the wall paper remover.
I picked up some at the local hardware store, and reading the directions, found that for a single cup of water/wallpaper-remover, I'd have to add 0.08 fluid ounces: a real case of clubfoot in my plans. The mixture (probably too heavy on the wall paper remover) succeeded only in pulverizing the shank in the butt, with no sign that the glue joint had been undone. (This was a 50's P. A. Stark spinet, and the glue looked synthetic.)
So I postponed the tuning (the shank replacement on B2 being the necessary first step), and brought the parts back to the shop (including an unbroken neighbor for reference), to be done with a machinist vice and drill press. But I do get to try your instructions on the hammer head.
In the meantime, I'd love to buy this boring jig from someone no longer using it. (Schaff said it got dropped from their catalog decades ago.)
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William Ballard RPT
WBPS
Saxtons River VT
802-869-9107
"Our lives contain a thousand springs
and dies if one be gone
Strange that a harp of a thousand strings
should keep in tune so long."
...........Dr. Watts, "The Continental Harmony,1774
+++++++++++++++++++++
Original Message:
Sent: 03-30-2023 05:00
From: Peter Grey
Subject: Upright Hammer Boring Jig
Bill,
Yes, I agree with Floyd. I haven't used mine in years but the extraction method that Bill Spurlock taught has served me well. Basically a small hole drilled into the top of the buried shank, squirt alcohol/water mix in the hole and let it set a minute, then turn a drywall screw into the hole and use your butane torch to heat the screw to the point of steam, then use extracting pliers to slowly pull the mass out. Works virtually every time. (And always make sure to burn your fingers on that hot screw before it cools down). Then chase the hole with the right drill bit and a new shank makes a perfect fit and angle in the original hole. Same technique for a hammer with shank busted off flush.
Peter Grey Piano Doctor
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Peter Grey
Stratham NH
(603) 686-2395
pianodoctor57@gmail.com
Original Message:
Sent: 03-29-2023 10:35
From: Paul McCloud
Subject: Upright Hammer Boring Jig
I have one of these, somewhere. I found this by searching "piano hammer head boring jig", then looking at Images. I'm not sure if it's still for sale.
https://www.google.com/imgres?imgurl=https%3A%2F%2Fforum.pianoworld.com%2F%2Fgallery%2F42%2Ffull%2F10678.jpg&tbnid=O6LWLExOq0gLiM&vet=12ahUKEwiL6LuqrYH-AhXDiO4BHf2NCf8QMygGegQIARBB..i&imgrefurl=https%3A%2F%2Fforum.pianoworld.com%2Fubbthreads.php%2Fgalleries%2F2779539%2Fun-named-hammer-boring-jig.html&docid=5OzY8T0yvQ69IM&w=800&h=600&q=piano%20hammer%20head%20boring%20jig&client=firefox-b-1-d&ved=2ahUKEwiL6LuqrYH-AhXDiO4BHf2NCf8QMygGegQIARBB
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Paul McCloud, RPT
Accutone Piano Service
www.AccutonePianoService.com
pavadasa@gmail.com
Original Message:
Sent: 03-28-2023 16:40
From: Bill Ballard
Subject: Upright Hammer Boring Jig
What's the current version of the #16175 from the '82 APSCO catalog?
I have to replace a spinet hammershank tomorrow, don't know when my trusty 16175 got left elsewhere (years ago), and will have to bring along my small bench drill press to do it in somebody's living room.
(No, the current hammer boring jigs will not handle upright butts.)
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William Ballard RPT
WBPS
Saxtons River VT
802-869-9107
"Our lives contain a thousand springs
and dies if one be gone
Strange that a harp of a thousand strings
should keep in tune so long."
...........Dr. Watts, "The Continental Harmony,1774
+++++++++++++++++++++
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