As part of this ongoing problematic build, I've attached my headstock to the neck via a scarf joint, with the headstock face creating part of the flat surface of the neck where the fretboard will be attached.
However, in the course of trying to flatten the faces that were glued together, I have gotten the angles slightly out of sync; as a result, there's a slight "valley" in the top third of the neck now.
Normally I'd just sand down the whole thing to an even flatness, but I need to keep the correct height that I currently have. Is there any way to "patch" the dip?
Hi Sean, ooops! I would suggest glueing a piece of timber to the angled part of the neck, reshape it so that it is now square with enough length for the fresh angle to be cut. Then lay the peghead piece on top of your new timber, line it up so you can draw a line, cut the piece you just added at the correct angle. You could leave room on the side of the cut to level the face of the peghead after if you wanted.
Then glue the peg head on as you would normally do. Cover this with a veneer on the face if you want to cover the joint.
Hope you can follow this, can't do fancy drawings on here.
Good luck Taff
I would just add a shim and sand that flat.
Hi again Sean, I have a bit more time so I did a drawing of what I meant earlier.
The way I suggested would give you a shim, as others have said, but will give one with the corrected angle, which is what I thought you wanted to do. Just adding a shim I think will just give the same angle only further back. My suggestion was to replace some wood and recut the angle.
i have also shown the steps I use when cutting a spliced peghead. After the front is sanded flat I then thin the back to get the thickness that suits the tuners.