[pianotech] First Pinblock

[Chuck Behm]

Hey, Noah - Sounds like an interesting project you're embarking on! I'm
assuming this piano has a lot of sentimental value to you or someone near
and dear (hence it goes by a name), because you'll be spending a lot of
time on this. Well, if nothing else, it'll be a learning experience.

The article you're referring to deals with quite a bit different situation
- a solid pinblock which simply needed the pin fields routered out for the
insertion of pinblock panels. By the looks of things, you're beyond that
repair scenario, and will be looking at a total replacement of the
pinblock, complicated by the excessive goop which will need to be
completely removed from the back bracing before replacement may commence.

Before tackling the removal of the old pinblock, however, the first order
of business is establishing the correct placement of the pins before their
positioning is lost. You'll need to make a paper pattern, using
contractor's or butcher paper (not several sheets of computer paper taped
together!). Remove the old pins (noting the angle at which they're drilled)
and cover the entire pinblock with your paper. Crease the paper along the
sides and clearly mark the position with tack marks for later positioning.
Use a pencil to make a rubbing of the tuning pin holes. For photos of the
technique, have a look at the March, 2011 segment of the "Small Shop"
series<http://www.pianopromoproductions.com/resources/34.%20Mar.%2C%202011%20Small%20Shop.pdf>
.

The juncture between the bottom of the pinblock and the rest of the piano
hopefully is not complicated. I haven't taken one of these particular
pianos apart so I'm not sure what you'll be looking at. Anyone else have a
clue?

Best of luck.   Chuck

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