[pianotech] Pin Block Drilling

Ron Nossaman rnossaman at cox.net
Mon Jun 7 22:14:33 MDT 2010


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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