Fixing a 1969s-vintage Goya classical

[phavriluk]

This is a dandy tale. Please keep it going!

Thanks!

[MaineGeezer]

By the dawn's early light I took a look at the glue job. It seems to have adhered well, and the internal jacking stick came out as it was supposed to - no need to go to the Plan B saber saw.

All is not perfection, however. I'm going to have to clean up the binding channel quite a bit. At the waist, the back overlaps the sides so I'll have to trim the back to re-establish the channel. The ends look about right. In all the excitement I've mislaid my gramil though, there will be a slight delay in the proceedings. It might make more sense to go use the Fleishman binding machine I made and gave to my friend Carter, the deal being I could use it whenever I wanted. The binding may end up slightly thicker than the original. Stay tuned....

[MaineGeezer]

...and the verdict is to go see Carter and use the Fleishman binding machine. I found my gramil. Formerly I was able to enter a meditative state and not care how long it was taking, but that doesn't seem to happen anymore. The gramil takes forever, vs. a minute or two with the Fleishman. And cutting with a router does a much better job.

Yesterday I put a couple of strings on it, and it sounds like a classical guitar, nothing to get excited about, but at least I haven't turned it into something with the tonal qualities of a brick.

I'm still planning on putting in a tail wedge. The ends of the sides don;t quite come together evenly.

[MaineGeezer]

Duplicate.

[MaineGeezer]

While I wait to connect with Carter, I've gone back to the case. A few posts back there's a picture of the hole in the side of the case that needs patching.
I CNC'd a bunch of pieces to glue in the hole:

DSC05495.JPG

Glued a few together:

DSC05499.JPG

And glued them into the hole:

DSC05497.JPG

After it's all filled in, I'll put the usual black textured covering over it, possibly with some kind of filler to blend the transitions.
It looks as though it may actually work!

[Kevin Sjostrand]

Whoo hoo
Pretty cool. I don't know that I'd attemp to fix the case. Can't wait to see how it turns oit

[MaineGeezer]

Results were mixed. Rebuilding the structure of the case where the hole was worked out pretty well:


Putting on the covering, however, didn't go as well and the result looks kind of sloppy:

DSC05504.JPG

I'll have a few thoughts about why, in a bit.

[phavriluk]

Any more to tell? Thanks!

[MaineGeezer]

Yesterday somebody from Guitars4Vets came and picked it up. They are starting a local teaching group, and it will be one their loaner guitars. I think it's a good place for it.

I said I'd have a few more comments. I wonder what I had in mind.... ;-)

A bit more about the case patch. Rebuilding the broken area with the stack of cutouts worked really well. However, after building it up I should have applied something to the surface (Bondo, maybe?) to fill in the holes and level out the surface before I put the covering on.
Applying the covering was a problem. I used a hot melt glue gun, but adhesion to the vinyl covering was rather hit-and-miss. I also tried some contact cement, but that didn't work all that well either. Spray adhesive probably would have been the best choice, but at the time it was below freezing outside, and having gotten loopy once from breathing the fumes, I wasn't about to do it inside.
Carter cut the binding channel for me, and I tried to make sure the binding fit properly all the way around, I glued it in short sections and checked that the tape pulled it tight. And I STILL ended up with gaps. It was one of those time appropriate for colorful language: "Filddesticks" or even something as forceful as "Drat!" Messing up the binding is undoubtedly the thing that annoys me most about the project.

I guess that's about it.

[MaineGeezer]

duplicate