[pianotech] Drilling pinblocks from the bottom

Ron Nossaman rnossaman at cox.net
Thu Oct 15 08:58:00 MDT 2009


Joseph Garrett wrote:
> In  short, I think drilling all the way through is unnecessary in the 
> process.

In terms of trouble gone to, it's the other way. Not drilling 
through is unnecessary to the process.

The photo below makes me wonder if what rusts pins isn't built 
right into the block. This is a Steinway, and there is a rust 
line at every block lamination joint, not just the bottom one 
where the hole was open. I wonder how much worst it might have 
been without some air circulation down there at the bottom of 
the hole.

The point is, of course, that there isn't a clear body of 
evidence either way, as to which is "better". Drill through, 
or don't drill through, as you wish. When the magic day 
arrives and realistic evidence indicates which is better, we 
can all start doing it *that* way, if we aren't already.

Ron N
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