This one’s nasty. It’s a ‘short’ break meaning there’s not much glueing surface to provide ‘grip’. It's also got some nasty splintering and, while the owner thought to collect some of the loose splinters, most of these won’t jigsaw back cleanly (and there are some missing).
If ever a headstock repair needed reinforcement, this is it.
Splining is one option for reinforcement but there’s too much damage here to make that a viable option (and, as an aside, the truss-rod has a pretty big ‘anchor’ that leaves little room either side of it).
Nope. We’re going overlay on this one. Again, I’ve written about overlays before (here and here for example).
The wrinkle on this repair is that there’s some serious splintering and I want to be as sure as possible.
Overlay on the front and the rear.
Lots of photos follow:
As usual, I have to repair the break first to get the headstock reattached. While this isn’t too much trouble, there’s no way the repair could stand up to string tension without additional reinforcement.