[pianotech] Pin Block Drilling

[William Monroe]

True,

I guess I was hoping that whomever drilled would take that into account and
go up two sizes (or three - aaacccckkkk!) as necessary to get the desired
fit.  If the desired fit isn't achievable with this method, replace the
block.

William R. Monroe



On Mon, Jun 7, 2010 at 11:14 PM, Ron Nossaman <rnossaman at cox.net> wrote:

> William Monroe wrote:
>
>> Though, some may disagree with reaming........  ;-]
>>
>> Like me.
>> I would prefer to set up the drill press for drilling in the piano, with
>> the plate in, for larger size pins.  Reaming schmeeming, I say.
>> In my mind the process you propose to undertake is (in some ways) no
>> different than the way I drill every new pin block - in the piano, with two
>> passes.  In this case, the first pass has been done for you, and all you
>> have to do is drill the final size.  I drill 1/4" to start, then G, or H, or
>> whatever test bit worked well.  So in your case, you only need to drill the
>> "second pass" and away you go.  It helps to have a nice rig.  Mine, like so
>> many others out there is a copy of the (in)famous Nossaman "Hovercraft"
>> Drill Press.
>>
>
> Only yours is much prettier than mine. I considered this when I read the
> original post, but it's going to be tough to ream (drill) for the "next
> size" from 0.282" to an appropriate size for 0.286" and still get an
> adequate interference fit to produce the necessary torque.
> Ron N
>
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