[pianotech] Blocks

[Paul Williams]

I've done the 3 coils from top to bottom of plain wires, then just 2.5 in
the bass to not bury the pins so deep.  But that's all.  I don't know what
the rebuilders have done on pin hole drilling.  I rarely have restrung
without a new block. I should ask, I suppose. Eh? It seems silly to not
re-do the block when going so far as restringing.  I've done it just a
couple times.

Best to you, Dave.

Paul


On 10/22/12 3:47 PM, "David Love" <davidlovepianos at comcast.net> wrote:

>It does get the pin a bit more out of the block and I do typically string
>that way--four coils on the just the top section.  Traditionally, the
>block
>was drilled at different speeds to get the bass end tighter and the treble
>end less tight.  Since many (including me) double drill the block (smaller
>pilot hole followed by final drilling taking off only a small amount of
>material and thus not heating up the drill bit) the speed issue doesn't
>impact the tightness of the pin.  There was a method to the madness of
>controlling feed speed but it's a skill, like anything else, that probably
>gets fairly refined if you are drilling blocks all day.  Short of that,
>getting the pin more out of the block without the bottom coil being any
>farther away from the block itself is probably the best recourse.  Of
>course, in the "old days" they did both.
>
>David Love
>www.davidlovepianos.com
>
>
>-----Original Message-----
>From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
>Behalf
>Of Paul Williams
>Sent: Monday, October 22, 2012 1:21 PM
>To: pianotech at ptg.org
>Subject: Re: [pianotech] Blocks
>
>Would 4 coils make that much of a difference, Dave?  I've never done that.
>
>Paul
>
>
>On 10/22/12 3:19 PM, "David Love" <davidlovepianos at comcast.net> wrote:
>
>>An argument for continuing the old tradition of four coils in the top
>>section.
>>
>>David Love
>>www.davidlovepianos.com
>>
>>
>>Not just Steinway. I always speculated that it is because the treble is
>>0.1"
>>deeper in the block, the string coil is 0.066" smaller in diameter for
>>the same size pin, and the tension is 200lbs less.
>>
>>Ron N
>>
>>
>
>
>