Question for Ron Nossaman Re: Pinblocks

[David Love]

I'm convinced.  It makes total sense.  Why didn't I think of that. I'm about
to drill a block and will try it.

David Love


----- Original Message -----
From: "Ron Nossaman" <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: May 06, 2002 5:14 PM
Subject: Re: Question for Ron Nossaman Re: Pinblocks


> >So then you don't worry about the feed rate on the second pass?
> >
> >David Love
>
> I don't worry about it much on either pass. I don't punch it through, but
I
> don't spin the bit in the hole unnecessarily either. I feed at the rate it
> seems to be cutting comfortably, and maintain roughly the same feed rate
> throughout. Both the first and second pass go (individually) quicker than
I
> could do a finished hole in one pass. Two passes takes probably less than
> half again as long as one pass would and the results, for me at least, are
> far more uniform. The first pass is by far the slower, and more the
> struggle for me. Even with a high helix bit, a lot of big chips are coming
> out (or not quite coming out), and the feed rate tends to be erratic
> because I can't bear down on my lightweight little drilling setup without
> lifting the drill press off of the platform (rocking, actually) - then the
> bit occasionally jams with chips and has to be cleared by backing it at
> least partially out of the hole. All of this tends to make the first hole
> pretty untrustworthy, especially if it is supposed to be finished size.
The
> second pass is effortless, produces a small quantity of very small chips
> (big dust), and generates no control problems since I'm only enlarging the
> first hole by a little over 0.015". A heavier setup might make accurate
> drilling in one pass feasible, but I'm impressed enough with the results
> from this approach to not be awfully excited about pursuing anything
"better".
>
> Different strokes, and this works for me. However it's done, it's the
final
> fit that counts.
>
> Ron N
>