Double drilling pin blocks: Hand held versus drill press.

[Isaac sur Noos]

Drilling for longer pins is always done freehand, without apparent
problems. I've drilled a few blocks freehand a long time ago, a friend
does it with , say,  acceptable accuracy, probably more than with a
second grade drill press.


New block = new drill press, the one with permanent torque and numeric
regulation of the speed, that cost 15 days of holidays in a sunny land
!

Isaac

> -----Message d'origine-----
> De : pianotech-bounces@ptg.org
> [mailto:pianotech-bounces@ptg.org]De la
> part de Ron Nossaman
> Envoye : dimanche 8 fevrier 2004 06:02
> A : davidlovepianos@earthlink.net; Pianotech
> Objet : Re: Double drilling pinblocks: Hand held versus drill press.
>
>
>
> >Does anyone have any experience double drilling (initial
> smaller drill
> >followed by second drilling of desired target) pinblock by
> hand (hand held
> >power drill) rather than on a drill press who can comment
> on consistency
> >and comparative results in terms of torque?
> >
> >I was wondering if the double drilling method improves
> torque consistency
> >enough that you could consider doing the job with a hand
> held drill.
> >
> >David Love
>
> Sorry, no real help here. I've never drilled a block freehand. My
> experience with drilling other holes in two steps for other
> purposes,
> however, suggests to me that your success will depend on
> your ability to
> feel the direction of the pilot, and adjust the angle
> accordingly for the
> second pass down the pilot hole. You will, or you won't. It
> depends on what
> you feel, how you react, how tired you are, and the whim of
> Babbakazoo, the
> God of random chance, on any given hole. Up to half a dozen
> holes, I'd give
> a steady handed individual of above average mental focus a
> pretty good
> chance of success. For a 250 hole excursion requiring reproducing a
> nominally random pilot hole angle on each and every one,
> I'd say you'd
> better have a pretty forgiving pinblock, a better than
> average feel for
> what's happening, or generously low expectations of
> uniformity if you
> expect to win. It can be done, but I'd hesitate to
> guarantee it for most folks.
>
> This is from a "glass is half empty", "Murphy was an
> optimist", and "Never
> fly higher than you're willing to fall" guy, so take it
> accordingly. In the
> end, you do what you think is supportable by what you know
> you can do.
>
> Ron N
>
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