Question for Ron Nossaman Re: Pinblocks

[David Love]

So then you don't worry about the feed rate on the second pass?

David Love


----- Original Message -----
From: "Ron Nossaman" <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: May 06, 2002 2:00 PM
Subject: Re: Question for Ron Nossaman Re: Pinblocks


> >Ron:
> >
> >Do you still use the pilot hole technique when drilling pinblocks?  Does
> >that change the feed speed philosophy because of less heating up of the
bit?
> >
> >David Love
>
>
> David,
> Yes, and yes. I drill 0.25" first, without paying any particular attention
> to feed speed or bit temperature. I don't smoke it, or turn the bit blue,
> but a couple of thousandths variation in the size of that first hole won't
> matter a bit (sorry). The second pass reaming on size will not heat the
bit
> enough to be a problem. Delignit is too dense for me to get good
uniformity
> drilling in one pass, at least with any of the tricks I've tried. Double
> drilling takes a little longer, but the uniformity is much improved with
no
> other special technique.
>
> Ron N
>